Class / Patent application number | Description | Number of patent applications / Date published |
408200000 | With work-engaging structure detachable from cutting edge | 50 |
20080213053 | ROTARY CUTTING TOOL, SUCH AS A DRILL, COMPRISING AN EXCHANGEABLE CUTTING INSERT, AND AN EXCHANGEABLE CUTTING INSERT - A rotary cutting tool that is composed of a tool shank with at least one chucking groove or chip flute and one exchangeable cutting insert. At the tip of the shank a recess for accommodating the cutting insert is provided. The tool shank, on its circumference, has a limb with a bearing surface that is inclined relative to the tool axis and that corresponds to a likewise inclined bearing surface on a wing of the cutting insert. The inclination of the bearing surfaces produces an axial force that retains the cutting insert on the tool shank. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner. | 09-04-2008 |
20090136309 | APPARATUS AND METHOD FOR CHIP EVACUATION - A chip evacuation device for evacuating chips from a workpiece is disclosed. The chip evacuation device includes a sleeve having a first end and a second end with a sidewall extending therebetween. The sidewall defines an interior between the first end and the second end and has a moveably biased portion. The first end is structured to contact the workpiece, and defines at least one vent hold extending through the sidewall adjacent the workpiece. The second end of the sleeve is structured to receive at least a portion of the cutting tool therethrough. The chip evacuation device also includes a vacuum apparatus in flow communication with the interior of the sleeve. A machine tool having a tool bit and a chip evacuation device surrounding the tool bit is also disclosed. | 05-28-2009 |
20090311060 | T00L FOR ROTARY CUTTING MACHINING - A tool for rotary cutting machining includes a tool body and a replaceable cutting head detachably attachable to the tool body. At its front end, the tool body is provide with two coupling legs projecting in an axial direction. The respective coupling leg is provided with a stop surface for transferring torque from the tool body to the cutting head, which stop surface is designed for abutment against a corresponding stop surface of the cutting head. The respective coupling leg is provided with a shoulder protruding from the stop surface of the coupling leg. The cutting head is provided with two shoulders facing the front end of the cutting head and arranged on opposite sides of the center axis of the cutting head, which shoulders border on a respective one of said stop surfaces of the cutting head and are arranged to extend in under a respective one of said shoulders of the coupling legs of the tool body when the cutting head is attached to the tool body, so as to thereby present the cutting head from being displaced in axial direction away from the tool body. The invention also relates to a tool body and a cutting head included in such a tool. | 12-17-2009 |
20100021253 | TOOL, TOOL BODY AND CUTTING HEAD - A tool for rotary cutting machining includes a tool body and a replaceable cutting head detachably attachable to the tool body. The cutting head has a coupling portion which is receivable in a space between two axially projecting coupling legs of the tool body. Cylindrical internal gripping surfaces are arranged in said space and designed for engagement with corresponding cylindrical external gripping surfaces of the cutting head. The gripping surfaces of the cutting head and the gripping surfaces of the tool body are dimensioned so as to prevent, by engagement with each other, the cutting head from being displaced in axial direction away from the tool body when the cutting head is attached to the tool body. A tool body and a cutting head included in such a tool are also disclosed. | 01-28-2010 |
20100061821 | Insert for Drill, Drill and Method of Cutting Work Material - An insert for a drill, a drill using the insert for a drill, and a method of cutting a work material are provided. The insert has an insert main body provided with a top surface and a side surface, a first cutting edge being formed on one side of an intersection part between the top surface and the side surface, a second cutting edge being formed on the other side of the intersection part between the top surface and the side surface, and being intersected with a virtual extension of the first cutting edge or the first cutting edge so as to have an outward convexity when viewed from above, a first breaking groove being formed in a concave shape along the first cutting edge in the top surface and having a maximum groove width at an end portion of the first cutting edge adjacent to the second cutting edge, and a second breaking groove being formed in a concave shape along the second cutting edge in the top surface and having a maximum groove width at an end portion of the second cutting edge adjacent to the first cutting edge. | 03-11-2010 |
20100111627 | Indexable Insert for Drilling and Blank Insert Manufacturing Same - An indexable insert for drilling includes front and rear edges opposite to each other and having a rotationally symmetrical relation; and two side surfaces opposite to each other and having a rotationally symmetrical relation. Each side surface has first and second cutting edge portions formed thereon. The first cutting edge portion is disposed farther than the second cutting edge from the center of the blank insert, thereby providing a step between the first and second cutting edge. The first cutting edge is adjacent to the front edge. | 05-06-2010 |
20100143059 | Cutting Tool Having Releasably Mounted Self-Clamping Cutting Head - A cutting tool has a tool shank and a replaceable cutting head resiliently secured to the tool shank by an interference fit between a male fixation member of the cutting head and a female fixation member of the tool shank. The male fixation member has a resilience slit. In each cross section of the cutting tool taken perpendicular to an axis of rotation of the cutting tool through mutual abutment regions, the cross sectional profiles of the mutual abutment regions are arcuate sectors. | 06-10-2010 |
20100322727 | DRILLING TOOL OF THE LOOSE TOP TYPE - A drilling tool of the loose top type includes a basic body having two bendable branches having inner support surfaces that are resiliently pressable against side contact surfaces of a replaceable loose top. The mounting of the loose top is affected by turning-in from an initial position to an operative end position. An abutting edge along each side contact surface then bends out the branches and subjects the branches to a spring force that reaches a maximum in a dead position so as to then decrease somewhat up to the operative end position. During the final phase of the rotary motion, the operator obtains, in a tactile and/or auditory way, confirmation of the loose top indeed reaching its operative end position. | 12-23-2010 |
20100322728 | DRILLING TOOL FOR CHIP REMOVING MACHINING AS WELL AS A LOOSE TOP THEREFOR - A drill of the loose top type, which is composed of a basic body and a replaceable loose top. In the front end of the basic body, a jaw is formed, which is delimited by two elastically bendable branches and an intermediate axial support surface, and in which the loose top can be securely pinched by inner support surfaces of the branches being resiliently pressed against side contact surfaces of the loose top. The two side contact surfaces of the loose top extend rearward from clearance surfaces that are included in the front end of the loose top. By forming the diametrical dimension between opposite side contact surfaces greater nearer the front end of the loose top, the branches of the jaw securely pinch the loose top in the area of the front ends thereof, where the branches have their maximal bending capacity. | 12-23-2010 |
20100322729 | DRILLING TOOL FOR CHIP REMOVING MACHINING AS WELL AS A LOOSE TOP AND A BASIC BODY THEREFOR - A loose top for drilling tools, including front and rear ends, a pair of envelope part surfaces concentric with a center axis, and two chip flutes countersunk in relation to the pair of envelope part surfaces between which two bars project radially from a central core, the front end including a cutting edge and at least one clearance surface positioned rotationally behind the cutting edge, the rear end forming an axial contact surface. The loose top includes two opposite side contact surfaces against which elastically bendable branches of a tool basic body are pressed in use, a pair of convex guide surfaces situated axially behind the side contact surfaces, the guide surfaces being concentric with the center axis and radially spaced-apart from the center axis at a distance that is less than the radial distance between the center axis and a respective side contact surface, and a pair of torque-carrying tangential contact surfaces that are situated radially inside the envelope part surfaces and outside the side contact surfaces. The axial contact surface extends perpendicular to the center axis between borderlines adjacent to the two envelope part surfaces. | 12-23-2010 |
20110020086 | ROTARY CUTTING TOOL, SUCH AS A DRILL, COMPRISING AN EXCHANGEABLE CUTTING INSERT, AND AN EXCHANGEABLE CUTTING INSERT - A rotary cutting tool that is composed of a tool shank with at least one chucking groove or chip flute and one exchangeable cutting insert. At the tip of the shank a recess for accommodating the cutting insert is provided. The tool shank, on its circumference, has a limb with a bearing surface that is inclined relative to the tool axis and that corresponds to a likewise inclined bearing surface on a wing of the cutting insert. The inclination of the bearing surfaces produces an axial force that retains the cutting insert on the tool shank. | 01-27-2011 |
20110091296 | Throwaway Tip for Deep-Hole Drilling and Drill Head for Deep-Hole Drilling - A three-way indexable throwaway tip for deep-hole drilling can be used as a center cutting blade body for a drill head in either whole cutting type or uncut core break-off type applications. The throwaway tip for deep-hole drilling is of a thick plate body having a three-fold symmetry with three cutting sections that are rotationally spaced apart at a central angle of 120 degrees. When mounted on a drill head, one cutting section of the throwaway tip faces a drilling direction. The forward facing blade edge of that cutting section includes an inner blade edge shorter in blade length and an outer blade edge longer in blade length forming an apex. The outer blade edge is composed of two consecutive blade edge portions of a peak-side outer blade edge portion having a smaller outer blade edge angle and a corner-side outer blade edge portion having a larger outer blade edge angle. | 04-21-2011 |
20110097168 | Lathe Tool, In Particular Boring Tool - A boring tool has a receiving part implemented as a borer body and a front part implemented as a borer head, which extend along a central axis and can be removably fastened to one another via driver connection. The driver connection has at least two coupling pairs which are separate from one another and are disposed eccentrically relative to the central axis. Each coupling pair is formed by interlocking coupling elements, namely a receiving pocket and a driver pin. The coupling elements have an asymmetrical cross-sectional area and widen with increasing distance to the central axis. Through this design, a reliable transmission of high torques is achieved with lower strains of the borer body in the area of the driver connection. Simultaneously, an automatic centering of the two tool parts to one another is performed. | 04-28-2011 |
20110110739 | ROTATABLE TOOL FOR CHIP REMOVING MACHINING AS WELL AS A LOOSE TOP AND A BASIC BODY THEREFOR - A rotatable tool for chip removing machining, including a basic body having front and rear ends between which a first center axis extends with which an envelope surface is concentric, the front end including a jaw delimited by two torque-transferring drivers and an intermediate bottom in which a center hole extending axially inside the basic body mouths, and a bore for a locking screw extending radially between the center hole and the envelope surface. A loose top has front and rear ends between which a second center axis extends, in the extension of which a pin protruding from the rear end extends that is delimited by a free end surface and an envelope surface in which a shoulder surface is included for the locking screw arranged in the radial bore. A countersink axially spaced apart from the end surface is formed in the envelope surface of the pin of the loose top for the receipt of a snap-in member arranged along the inside of the center hole to provisionally clamp the pin in the center hole when the locking screw is not tightened. | 05-12-2011 |
20110164937 | Cutting Tool - The present invention provides a cutting tool which comprising a drill bit having an integrated deburring tool or tip which is displaceable between an extended and retracted position in order to enable both drilling and deburring operations to be carried out using a single tool, and which incorporates a number of features to increase the speed at which the deburring tip extends and retracts. | 07-07-2011 |
20110280677 | Tool With Releasably Mounted Self-Clamping Cutting Head - A metal cutting tool has a cutting head releasably mounted on a front end of a tool shank, in a self-clamping manner. The tool shank's forward end is provided with a pair of shank coupling portions, each having a forwardly facing shank support surface. A pocket recess is defined between the shank's coupling portions. Within the pocket recess are a plurality of shank fixation surfaces which are parallel to a longitudinal axis of the tool shank. The cutting head has a cap portion and a fixation portion extending in rearward direction therefrom. The cap portion includes a pair of head segments, each having a rearwardly facing head base surface. The cutting head's fixation portion has a plurality of head fixation surfaces which are parallel to a longitudinal axis of the cutting head. In the assembled tool, the tool shank's forwardly facing shank support surfaces support the cutting head's rearwardly facing head base surfaces, while the plurality of head fixation surfaces abut the plurality of shank fixation surfaces. | 11-17-2011 |
20110318128 | DRILL TIP AND DRILLING TOOL HAVING A DRILL TIP - The invention relates to a drill tip ( | 12-29-2011 |
20120003056 | MODULAR DRILL WITH DEFINED SIDE SUPPORT - A rotary cutting tool has a shank and an interchangeable cutting tip which can be coupled to the shank. The shank has a locking geometry having an undercut into which a locking projection of the cutting tip projects. Numerous lateral supporting surfaces and supporting counter-surfaces are provided for laterally fixing the cutting tip in the shank. | 01-05-2012 |
20120063857 | Indexable Drill and Drill Body - An indexable drill includes an insert attachment seat and a chip discharging groove formed so as to extend from a leading end surface to a trailing end side of the drill in the direction of the axis of rotation and through which chips generated by the cutting insert are discharged, and in that a wall surface defining the chip discharging groove at least partly includes a smoothed surface with a surface roughness of at most 0.5 μm in terms of arithmetic average roughness Ra, the wall surface of the chip discharging groove is partly formed on a thinned wall portion thinned by the central edge attachment seat and the outer peripheral edge attachment seat, and a crossing portion between the first wall surface and the second wall surface in the thinned wall portion is rounded. | 03-15-2012 |
20120063858 | Indexable Drill and Drill Body - A drill body of an indexable drill includes: a chip discharging groove which discharges chips produced by a cutting insert on a wall surface defining the chip discharging groove; and an insert attachment seat on which the cutting insert formed in a front end side, in a rotational axis direction, of a first wall surface of the chip discharging groove that faces a drill rotation direction is detachably mounted. A chip formation portion is formed which includes at least any of a plurality of protruding portions that protrudes outward from a second wall surface and a plurality of concave portions that is concave inward from the second wall surface, at least in a front end portion of the second wall surface of the chip discharging groove that faces a rear side of the drill rotation direction. | 03-15-2012 |
20120099937 | THROW-AWAY ROTATING TOOL - A throw-away rotating tool includes plural protrusions | 04-26-2012 |
20120099938 | Cutting Tool and Coupling Mechanism Therefor - A cutting tool having a cutting head removably secured to a shank by frictional forces maintained between a male coupling member located in a female coupling member. Support surfaces of the male coupling member engage support walls of the female coupling member. The support surfaces lie on a common cylinder having a larger diameter than a common cylinder on which the support walls lie. The support walls are located on a circumferentially continuous bore wall of the female coupling member. | 04-26-2012 |
20120121351 | DEEP HOLE DRILL - The invention relates to a deep hole drill comprising at least one cutter (S), which is formed on a drill head and which has at least one cutting edge, the at least one cutter being divided into at least two sub-cutters (T | 05-17-2012 |
20120148358 | Fluted Drill and Fluted Drill Cutting Head Therefor - A fluted drill has a drill body with a fluted drill cutting head removably secured thereto. The cutting head has two drilling portions facing axially opposite directions. In axial view, the cutting head has at least four through openings. Each drilling portion includes a plurality of head flute portions and a plurality of cutting head coupling portions. | 06-14-2012 |
20120155978 | THROW-AWAY ROTATING TOOL - A throw-away rotating tool improves workability of detaching a throw-away tip and prevents from damaging a body. In the throw-away tool, a convex connection | 06-21-2012 |
20120201618 | CUTTING INSERT AND ASSOCIATED DRILLING TOOL - A cutting insert for use in a drilling tool includes two end faces disposed perpendicular to an insert axis and a plurality of side walls connecting the end faces. Supporting surfaces for bearing against corresponding mating supporting surfaces of a cutting insert receptacle of the drilling tool are formed on at least two of the side walls arranged in a rear region of the cutting insert. A main lip for machining a workpiece to be drilled is formed on at least one side wall arranged in a front region of the cutting insert. The side walls having the supporting surfaces are arranged in such a way that the cutting insert can be inserted into a trigon cutting insert receptacle in an accurately fitting manner. | 08-09-2012 |
20120230787 | CUTTING TOOL, CUTTING TOOL HOLDER, AND A CUTTING INSERT THEREFOR - A cutting tool holder configured for mounting a cutting insert to form a cutting tool that extends along a central axis and comprises a mounting portion having a seat surface oriented generally perpendicular to the central axis. The tool holder has at least two securing extensions projecting from the seat surface in a direction generally parallel to the central axis. Each of the extensions are formed, at an end remote from the seat surface with a latch portion extending towards the central axis. The latch portion has an under and top surface, both oriented generally transversely to the central axis such that the under surface is disposed between the seat surface and the top surface. Each of the extensions is formed with a side surface extending between the under and side surfaces to form a securing pocket defined between the seat, side, and under surfaces. | 09-13-2012 |
20120282054 | MULTIPLY INDEXABLE CUTTING INSERT FOR A DRILLING TOOL - A multiply indexable cutting insert for a drilling tool includes a body defined by two plane-parallel outside faces disposed perpendicular to an insert axis. Each outside face includes a plurality of edges defining a substantially triangular outer contour. Each edge includes a respective main cutting edge extending substantially over the entire length of the respective edge. The body has a rotational symmetry in respect of a 120° rotation about the insert axis and a rotational symmetry in respect of a 180° rotation transversely in relation to the insert axis. | 11-08-2012 |
20130022422 | IDEXABLE DRILL INSERT - A quadrangular indexable drill insert includes a substantially flat top and bottom surfaces, a side surface adjoining the top and bottom surfaces, four identical cutting edges of the side surface intersecting the top surface, a through hole extending between the top and bottom surfaces, and a chamfer provided at the bottom edge of the drill insert. Each cutting edge includes a first part edge; a second part edge extending from the first part edge; a third part edge extending away from the central axis, the second and third part edges being joined together by a transition part edge having a concave curved portion and a convex curved portion; and a curved nose portion of predetermined radius disposed at a corner of the insert adjoining the first part edge of one cutting edge with the third part edge of a succeeding cutting edge of the four identical cutting edges. | 01-24-2013 |
20130022423 | IDEXABLE DRILL INSERT - A quadrangular indexable drill insert includes: a top surface, a bottom surface, a side surface adjoining the top and bottom surfaces from four sides of the insert, four cutting edges configured at the intersection of the side surface and the top surface, and a screw hole disposed at the center of the insert. Each cutting edge includes: a first part edge; a second part edge extending from the first part edge; a third part edge extends away from a reference axis, a nose portion adjoins the first part edge with the third part edge of a succeeding cutting edge and a transitional edge joining the second and third part edges. The transitional part edge forms an angle of about 10° to about 90° with respect to the reference axis and forms a convex curve with the second part edge and a concave curve with the third part edge. | 01-24-2013 |
20130136553 | CUTTING TOOL - A cutting tool including a body, a blade, a feed shaft, and a locking member. The body defines an axis and is adapted to be received by a spindle of a power tool. The blade is removably supportable on the body and rotatable about the axis for cutting a workpiece. A feed shaft is removably supportable in the body and rotatable about the axis for engaging a workpiece, the feed shaft being mountable in the cutting tool to engage and at least partially restrain the blade. The feed shaft further includes an opening transverse to the axis. The locking member is engageable with the body and with the opening in the feed shaft. Advancement of the locking member into the opening tightens both the blade and the feed shaft to the body. | 05-30-2013 |
20130164089 | DRILLING TOOL - The invention relates to a drilling tool comprising a clamping shaft and cutting element contiguous with said clamping shaft. The cutting element comprises at least one flute having a flute surface that has a concave cross-section. The at least one flute has a cut-in section in the chip-forming zone adjacent to the main cutting edge in the area of the flute front and/or the back segment to enlarge the flute cross-section. | 06-27-2013 |
20130202375 | INDEXABLE DRILL INSERT, A DRILLING TOOL AND A METHOD OF ASSEMBLING THEREOF - The present disclosure relates to a drilling tool, more particularly to drill insert of trigon shape with plurality of cutting edges. The indexable drill insert ( | 08-08-2013 |
20130251471 | CUTTING TOOL HAVING REPLACEABLE CUTTING INSERT AND REPLACEABLE CUTTING INSERT THEREFORE - A rotary cutting tool includes a replaceable cutting tip having a cutting portion structured to perform cutting operations on a workpiece and a first threaded portion disposed generally opposite the cutting portion. The cutting tool further includes a generally cylindrical tool body disposed about a central longitudinal axis. The tool body has a first end portion adapted to be coupled to a machine tool and an opposite second end portion having a second threaded portion cooperatively engaged to the first threaded portion. The second threaded portion is moveable with respect to the tool body in a manner that selectively couples the cutting tip to the tool body. | 09-26-2013 |
20130259590 | Cutting Tool Having Clamping Bolt Provided with Locking Portion and Cutting Insert Therefor - A cutting tool has a cutting insert secured in a tool shank by means of a clamping bolt, whereby two opposing side surfaces of a body portion of the cutting insert are located between two spaced apart protuberances of the tool shank. The body portion includes a cut-out extending between the two opposing side surfaces and opening out to a bottom surface. The cut-out includes an undercut with at least one undercut sub-surface with respect to a forward direction. The clamping bolt can be rotated from a locked position wherein the bolt shank has a threaded portion engaged in one of the protuberances and a bolt locking portion located directly forward of the at least one undercut sub-surface, to an un-locked position wherein the threaded portion remains engaged in the protuberance and no portion of the bolt shank is located directly forward of the at least one undercut sub-surface. | 10-03-2013 |
20140294528 | REPLACEABLE CUTTING HEAD - A replaceable cutting head stably rotates a head body using a work tool during attachment. An outer periphery of the head body is provided with a plurality of chip discharge grooves extending along a direction of an axis, cutting blades extending along the chip discharge grooves, and a pair of latching faces that are formed by cutting the outer periphery of the head body and are arranged back to back with the axis interposed therebetween at a base end portion along the axial direction. A first chip discharge groove, and a second chip discharge groove having a narrower width along a circumferential direction around the axis than the first chip discharge groove at at least the base end portion along the direction of the axis are included in the chip discharge grooves. At least one latching face is connected to a base end portion of the second chip discharge groove. | 10-02-2014 |
20150016909 | DRILL BIT WITH AN EXCHANGEABLE CUTTING PORTION - A drill bit which is rotatable about a drilling axis is disclosed. The drill bit has a cutting section having one or more cutting segments and a first plug-connecting element and a drill shaft section having a second plug-connecting element. The first plug-connecting element and the second plug-connecting element form a plug connection and the first plug-connecting element and the second plug-connecting element are connectable by a pin connection. | 01-15-2015 |
408201000 | Removable central lead | 5 |
20090087273 | CUTTING TOOL - A cutting tool including a body, a blade, a feed shaft, and a locking member. The body defines an axis and is adapted to be received by a spindle of a power tool. The blade is removably supportable on the body and rotatable about the axis for cutting a workpiece. A feed shaft is removably supportable in the body and rotatable about the axis for engaging a workpiece, the feed shaft being mountable in the cutting tool to engage and at least partially restrain the blade. The feed shaft further includes an opening transverse to the axis. The locking member is engageable with the body and with the opening in the feed shaft. Advancement of the locking member into the opening tightens both the blade and the feed shaft to the body. | 04-02-2009 |
20110033256 | Annular Sawing Structure - An annular sawing structure comprises: a sawing body including a saw member, a connecting member, and a positioning drill; the saw member including a sawtoothed blade disposed on a front end thereof; the connecting member including a groove being concentric with the saw member and secured on a front end thereof; the positioning drill fitted to the groove of the connecting member and including a cutting insertion fixed on a front end thereof and extending out of a sawtoothed blade of the saw member, the cutting insertion including a reduced end extending rearward therefrom and received in the receiving chamber of the saw member, and an outer diameter of the cutting insertion being lager than that of the reduced end, and the positioning drill further including an engaging end extending out of the connecting member to couple with an engaging head of a tool. | 02-10-2011 |
20110188955 | REPLACEABLE TIP FOR A BIT OR AUGER BIT - A tool element for cutting a workpiece includes a body including a shank for connecting the tool element to a power tool, a first cutting portion formed as part of the body and defining a first removing pattern, and a cutting element removably coupled to the body and including a second cutting portion defining a second removing pattern, the second removing pattern being a substantial continuation of the first removing pattern. | 08-04-2011 |
20120134760 | REPLACEABLE TIP FOR A BIT OR AUGER BIT - A tool element for cutting a workpiece includes a shank adapted for connecting the tool element to a power tool, and a first cutting portion fixedly coupled to the shank and including a first cutting edge having a first diameter and a second cutting edge having a second diameter. A second cutting portion is removably coupled to the first cutting portion. The second cutting portion includes a third cutting edge having a third diameter and a fourth cutting edge having a fourth diameter. The second diameter is smaller than the first diameter, the third diameter is smaller than the second diameter, and the fourth diameter is smaller than the third diameter. | 05-31-2012 |
20140050545 | MULTIPURPOSE DRILLING TOOL AND ASSOCIATED CASE - A multipurpose drilling tool includes a guide head, a drilling cutter, and a shank for mounting on a chuck. These three elements are assembled with one another removably so as to allow each of them to be replaced by a similar element of different dimensions. In particular, the drilling cutter has a bore, and the guide head includes a pilot that comes into abutment at the entrance of the bore and a stem that passes along the bore and is screwed into the mounting shank. | 02-20-2014 |
408202000 | Depth-limiting member | 7 |
20100290850 | BORING ARRANGEMENT TO BE CONNECTED TO A BORING MACHINE - A boring arrangement is adapted to be connected to a boring machine. The boring arrangement includes, but is not limited to a boring bit for boring a final hole or a countersink hole in a hole of a workpiece with a fastening portion adapted to be secured to the boring machine. A stopping element is also included that is movably connected to the boring bit so as to enable a relative motion in a boring feed advance direction and with an end facing away from the fastening portion and further an element movable to the boring bit so as to enable a relative motion in the boring feed advance direction. The element has a hollow interior space therein adapted to allow the boring bit to pass therethrough in the boring feed advance direction so as to contact the workpiece and bore a final hole or a countersink hole therein. The element includes, but is not limited to an end facing towards to the stopping element. At this end, the element includes, but is not limited to a pin element at the second end facing towards to the workpiece to get in contact with preferably the most distant part of the border area of the hole of the workpiece regarding said direction. | 11-18-2010 |
20110110740 | DRILLING BIT WITH THE DEPTH-LIMITING AND ANGLE-LEADING FUNCTION FOR THE CARPENTER'S WORK - A drilling bit with the depth-limiting and angle-leading function for the carpenter's work, having a covering sleeve (with a driving shaft) and a bit holder for securing a bit. A limit ring and a screw socket (with female thread) are screwable to the covering sleeve (with the male thread) for adjusting the depth of the spot-faced hole in a workpiece (to be drilled) according to the actual operation requirement. | 05-12-2011 |
20140126972 | DEPTH GAUGE AND DRILL BIT - A drill bit has a shank portion having a plurality of SDS-type slots, a cutting portion comprising at least one cutting flute, and an intermediate portion connecting the shank to the cutting portion, the intermediate portion including at least one longitudinal slot. A depth gauge includes a body configured to receive the drill bit, a retention mechanism coupled to the body and having an inward projection to removably couple the body to the at least one additional slot in the drill bit, and a cap coupled to the body such that the cap contacts a workpiece surface to prevent the drill bit from entering the workpiece more than a predetermined depth, wherein the cap is movable relative to the body among a plurality of positions, wherein each of the plurality of positions corresponds to a different predetermined drilling depth. | 05-08-2014 |
20150037111 | POSITIONING SLEEVE ASSEMBLY ADAPTED FOR ENGAGING WITH DIFFERENT TOOL PARTS - A positioning sleeve assembly adapted for engaging with drill bit holder or screwdriver bit is provided with a sleeve and an engaging device. The engaging device includes a drive shaft at one end and an inserting hole at another end. The engaging device is inserted in the sleeve with the drive shaft located one end of the sleeve, and the inserting hole at the other end of the sleeve. The inserting hole at one end of the engaging device is suitable for both engaging with a drill bit holder and a screwdriver bit, so that a single positioning sleeve assembly of the present invention is capable of selectively connecting drill bit and screwdriver bit. | 02-05-2015 |
20150298218 | Reamer - A reamer includes a shank, a washer, a ring and a blade. The shank is a polygonal rod and includes an annular groove made in a periphery and a bore made in an end. The washer includes a slot. The ring includes a circular opening. The blade includes an insert inserted in the bore through the slot and the circular opening. The circular opening is made of a diameter larger than a width of the blade to allow the blade to rotate relative to the ring. | 10-22-2015 |
20160001380 | SAFETY DRILLING TOOL - A safety drilling tool having a tapered drill bit that drills through materials, such as metal, without producing any torque or heat is provided. The safety drilling tool may provide safety for the operator of the tool while drilling or cutting into electrical/electronic enclosures, such as switchgear. The bit may include a smooth graduated cam on the cutting portion eliminate the usage of steps as is the conventional practice in the art. The drill bits may be different sizes to reduce the bulkiness for sake of convenience. The bits may have a one or more internal helical flutes for pushing the debris through the hole being drilled. The hole saw portion of the bit draws the material into the center of the bit until the initial hole is made allowing the debris from the tapered bit to flow through hole being drilled. | 01-07-2016 |
20160045965 | TAP SLEEVE APPARATUS AND METHOD OF USE - A tap sleeve for accepting one of a variety of different tap tools for use to repair thread damage to an item being assembled on an assembly line. The tap sleeve is configured with a handle portion configured to be held by the worker, and a base portion for securing the tap tool and limiting the depth in which the tap tool can be inserted, while avoiding damaging the surface of the item being worked and while preventing the hand of the user from slipping toward the tap tool. Optionally, a removable head can be used to adapt the tap sleeve for use with another tool, such as a wrench, to provide additional torque. | 02-18-2016 |
408203000 | Adjustable | 1 |
20130202376 | ADJUSTABLE INDEXABLE DRILL AND MODULAR SYSTEM AND HOLDER - An adjustable drill is provided comprising a drill body having at least one face surface with a plurality of serrations provided therewith. The drill further has at least one cartridge having a cooperating plurality of second serrations, to be driven with the drill body when assembled therewith. The at least one cartridge includes at least one insert pocket, and at least one insert is releasably affixed in the insert pocket provided in the cartridge. In further examples, the adjustable drill may have a central cutting system in combination with the adjustable cartridge type system, wherein the central cutting system may be modular. There may also be provided a modular type of holder arrangement to provide flexibility to adapt the system for various applications. | 08-08-2013 |