Abstract: A power driver may include a housing, a tool chuck and a power take off mechanism. The tool chuck may have an input shaft mounted for rotation on the housing. The input shaft may support chuck jaws. A chuck actuating shaft may be mounted for rotation on the input shaft. The power take off mechanism may be connected to the tool chuck. The power take off mechanism may be adjustable into a DRILL DRIVE MODE to rotationally drive the input shaft and the chuck actuating shaft together as a unit, and a CHUCK MODE to use the transmission shaft to rotationally drive the chuck actuating shaft relative to the input shaft. The transmission shaft may be a gear shaft axially aligned with the input shaft, or a tertiary shaft axially offset from the input shaft.

Abstract: A chuck has a generally cylindrical body member having a nose section and a tail section. The tail section is configured to mate with the drive shaft so that the body rotates with the drive shaft. The nose section has an axial bore formed therein and a plurality of jaws is slidably positioned to engage a bit within the axial bore. Each of the jaws has a bit engaging jaw face formed thereon. One or more centering members are disposed adjacent to the jaws. The members are deformable from a first position where the members define a through passage configured to accept a bit, which has a drive shaft diameter less than a predefined diameter. The members are further configured to be deformable to a second position upon the insertion of a bit, which has a diameter greater than the predefined diameter, into the axial bore.

Abstract: A power driver may include a housing, a tool chuck and a power take off mechanism. The tool chuck may have an input shaft mounted for rotation on the housing. The input shaft may support chuck jaws. A chuck actuating shaft may be mounted for rotation on the input shaft. The power take off mechanism may be connected to the tool chuck. The power take off mechanism may be adjustable into a DRILL/DRIVE MODE to rotationally drive the input shaft and the chuck actuating shaft together as a unit. Here, a brake may resist relative rotation between the input shaft and the chuck actuating shaft. The power take off mechanism may be adjustable into a CHUCK MODE in which a gear mounted on the input shaft may rotationally drive the chuck actuating shaft relative to the input shaft. Here, the brake may be deactivated.

Abstract: A power driver may include a housing, a tool chuck and a power take off mechanism. The tool chuck may have an input shaft mounted for rotation on the housing. The input shaft may support jaws. A chuck actuating shaft may be mounted for rotation on the input shaft. The power take off mechanism may be connected to the tool chuck. The power take off mechanism may be adjustable into a DRILL DRIVE MODE to rotationally drive the input shaft and the chuck actuating shaft together as a unit, and a CHUCK MODE to rotationally drive the chuck actuating shaft relative to the input shaft. The power take off mechanism may include a shift ring that is movable axially to achieve the various operational modes. During such axial movement, the shift ring may be rotationally locked to the housing and/or transmission components via compliant grounding mechanisms.

Abstract: A drill chuck with an impacting structure that may be selectively employed to drive the jaws of the chuck into further engagement with or out of engagement with a bit. The chuck is configured so as to be capable of generating relatively high torques in a loosening direction so as to ensure that the bit can be removed from the jaws of the chuck.

Abstract: The invention relates to a method of chucking easily deformed workpieces (6) sensitive to deformation, particularly thin-walled rings, wherein the workpiece (6) to be chucked is placed between the jaws (2) of a chuck (1) comprising a pole block (7) having at least one magnet (4) in a chuck body (3) behind the jaws, and wherein the workpiece is centered by closing the jaws (2) and fixed in this centered position by the magnet (4). The invention further relates to a chuck (1) comprising a magnet (4) provided in a pole block (7) behind the jaws (2).

Abstract: A drill chuck has a chuck body formed with an annular row of radially outwardly directed teeth. A sleeve axially fixed but rotatable about the chuck axis on the chuck body has a plurality of angularly spaced guides holding respective radially displaceable jaws. A screwthread displaces the jaws radially toward each other on rotation of the sleeve in a tightening direction on the body and displaces the jaws radially apart on rotation of the sleeve in an opposite loosening direction. A pawl pivoted on the inner sleeve has a tip radially displaceable between an inner blocking position engaging the body teeth and allowing rotation of the sleeve on the body only in the tightening direction and an outer freeing position clear of the body teeth and permitting rotation of the sleeve on the body in both of the directions. A spring urges the pawl into the inner blocking position.

Abstract: A chuck includes: a body attached to a rotating machine, carrying jaws; a peripheral nut fixedly attached to the body rotatably in a clamping direction; a ring that can be moved about the nut according to a limited angular amplitude, and having a considerable weight; and a spring connecting the nut and the ring. The nut includes a tooth interacting with a tooth of the ring to operate the ring in the clamping direction. When the body rotates in an unclamping direction, the ring, due to its inertia, does not follow the rotary movement of the nut. Then, when the machine stops and under the effect of the spring, impacts the tooth of the nut causing the jaws to clamp.

Abstract: A chuck is described. The chuck may include: a plurality of chuck jaws. Each chuck jaw is radially movable toward and way from a chuck axis, and each chuck jaw including: two substantially coplanar surfaces perpendicular to a chuck jaw axis and substantially parallel to the chuck axis; a ridge located between the two substantially coplanar surfaces; and two troughs, one trough located between the ridge and one of the substantially coplanar surface and the other trough located between the ridge and the other coplanar surface. A chuck jaw and method of configuring a chuck are also described.

Abstract: The present invention relates to a clamping device for clamping tools, having a receptacle (2) that is surrounded by an annular space (3). The annular space (3) is open toward the workpiece-side end surface (1a) of the chuck body (1) and toward the receptacle (2), and is closed off by an cover (5). Configured in the receptacle-side inner wall of the cover (5) is an annular groove (13) in which a sealing ring (12) is arranged; a liquid can be delivered to the annular groove (13) in order to press inward the sealing ring (12) that is inserted into the annular groove (13) and thus actively seal a gap formed between the cover (5) and a tool (W) inserted into the receptacle (2).

Abstract: A tool chucking apparatus includes a fastening member, a clipping member, a holding member and an extension member. The fastening member has a first housing space to hold the clipping member. The clipping member has pawl structures spaced in an annular manner and formed in a conical structure. The conical structure has a top end directing towards the fastening member. The extension member includes a support portion and an anchor portion coupled together. The support portion has another end tightly coupled with the clipping member and the fastening member. The anchor portion has another end tightly coupled with the holding member. The support portion is selectable at a desired length specification according to the cutter or tool. The fastening member, clipping member, holding member and extension member are hollow in the center thereof to form an installation passage after assembly to hold the cutter or tool.

Abstract: In a power driver, a power take off (PTO) arrangement (to open/close a chuck) includes: a chuck actuating shaft and a coaxial PTO actuator shaft axially displaceable along, yet rotationally locked together about, a first axis of the power driver; an input shaft, supporting jaws of the chuck, and concentric to at least a portion of the chuck actuating shaft and a portion of the PTO actuator shaft; relative rotation between the chuck actuating shaft and the input shaft selectively being prevented and being caused by first and second configurations of the chuck actuating shaft and the PTO actuator shaft, respectively; and a PTO-control member, displaceable between first and second positions along a second axis parallel to the first axis, and coupled to adjust at least one of the chuck actuating shaft and the PTO actuator to achieve the first and second configurations, respectively.

Abstract: A keyless chuck having both an automatic locking feature and a manual locking feature. The automatic locking feature provides for automatic locking of the chuck in a tightened state when a predetermined tightening torque has been exceeded. The chuck can be utilized with only the automatic locking feature engaged. If desired, a manual locking feature can also be engaged wherein rotation of the outer sleeve relative to the body is prevented. A retaining feature can be employed to inhibit the movement of the manual locking feature between a locked and unlocked position. The retaining feature thereby avoids accidental engaging or disengaging of the manual locking feature.

Abstract: A tool chuck may include a chuck body that supports chuck jaws. The chuck body may define a longitudinal axis. A driven gear may be mounted for rotation on the chuck body. The rotational axis of the driven gear may be parallel to the longitudinal axis of the chuck body. A nutating gear may be provided on the chuck body. The nutating gear may be nutatable about the chuck body to rotationally drive the driven gear relative to the chuck body so that the chuck jaws move along the longitudinal axis of the chuck body.

Abstract: A chuck for a drill/driver. The chuck can include an input shaft having a cavity, a chuck actuating shaft and a chuck actuating screw. The chuck actuating shaft can be received in the cavity and can be rotatable about a chuck axis. The chuck actuating shaft can have a threaded aperture. The chuck actuating screw can have a threaded portion that is threadably engaged to the threaded aperture. The jaws can be received in the cavity and can engage the input shaft. The jaws can be coupled to the chuck actuating screw such that rotation of the chuck actuating shaft relative to the chuck actuating screw translates the jaws so that the jaws converge toward or diverge from the chuck axis. The chuck further includes a device coupled to at least one of the chuck actuating screw, the chuck actuating shaft and the input shaft for limiting elastic elongation of the chuck actuating screw in an axial direction when the jaws are positioned in a fully opened condition.

Abstract: A drill/driver chuck has a cylindrical member (2) with a central axial bore (4). A plurality of further bores (6) slanted with respect to the axis of the cylindrical member (4). A jaw actuator (10) is coupled to each jaw (8) and moves them within their respective bores (6). The jaw actuator (10) has a conical shape with the walls of the cone having a plurality of slots (12) formed therein to co-operate with each respective jaw (8).

Abstract: The present invention relates to a self-tightened reverse locking chuck, comprising: a body member, a nut, jaws, a bearing, a drive sleeve, a front sleeve, an annular drive member, a movable ratchet wheel, a reverse locking ratchet wheel, a detent lock ring, a control ring and a control ring outer sleeve. The drive sleeve is positioned in a central hole in the rear end of the body member via a spring ring, drive keys on the drive sleeve can drive the annular drive member and the detent lock ring to rotate, in the chucked state, locked by the control ring. The chuck according to the present invention has the function of self-tightening, preventing the clamping force from being excessive, and of performing reverse rotation operation. The chuck is easy to assembly and disassembly, a tool shank clamped by the chuck will not be loosened due to vibration or shock, and the chuck is adapted for use in tools with various type of shank.

Abstract: A quick change gripping apparatus for gripping a workpiece having a profile. The apparatus includes a cylindrical housing having a first end and a second end. The cylindrical housing also includes an inner feature having a tapered wall. The housing also has a bottom section and a clam shell section that is hingedly connected to the bottom section. The quick change gripping apparatus also includes a first ring and a second ring, each disposed around the cylindrical housing.

Abstract: A drill chuck has a chuck body centered on and rotatable about an axis, a jaw holder rotatable on the body and formed with a plurality of angularly spaced guides, a sleeve surrounding the holder and body, and jaws in the guides between the sleeve and the body. Interengaging first and second stops on the body engage the sleeve and limit relative angular movement of the sleeve on the body between respective angularly offset first and second end positions. An annular array of teeth rotationally fixed to the chuck body engages first and second pawl angularly fixed on the holder. The pawls and the array of teeth are oriented such that each pawl locks in one direction and ratchets in the other, with the pawls working oppositely. Respective first and second springs urge the first and second pawls into the locking positions.

Abstract: A quick-action chuck, in particular for a power tool, has an actuating element (20) and a control device which includes at least one mechanism (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking reinforcement force via the locking device (10) that is controllable by the control device, a positive-engagement connection can be brought about for absorbing the chucking reinforcement force.

Abstract: A drill chuck has a chuck body centered on and axis, and a tightening element surrounding the body and rotatable thereon about the axis. The tightening element has a front sleeve formed with jaw-holding guides and a rear sleeve releasably coupled with the front sleeve. A retaining ring bears axially forward on the sleeve. Releasable locking formations on the ring and body are relatively displaceable between a retaining position preventing axial rearward shifting of the ring and sleeve on the body and a freeing position permitting such shifting. A pusher rotationally coupled to the jaws bears axially forward on the jaws. Interengaging screwthreads on the pusher and chuck body are provided so that relative rotation of the sleeve together with the jaws and pusher relative to the chuck body axially displaces the jaws between their positions.

Abstract: A quick chuck for a hand power tool has an actuating element, at least one arresting element for receiving a clamping support force, a control device having at least one control unit for controlling the at least one arresting element, the arresting element controllable by the control device producing a form-locking connection for receiving the clamping support force.

Abstract: A drill chuck has a chuck body centered on and rotatable about an axis and having a screwthread, a main sleeve axially fixed but rotatable about the axis on the body and formed centered on the axis with a plurality of angled forwardly open guides, and respective clamping jaws displaceable in the guides. A pusher axially engageable with clamping jaws is axially forwardly displaceable relative to the chuck body to shift the clamping jaws axially forward and radially inward in the respective guides and axially rearwardly displaceable relative to the chuck body to shift the clamping jaws axially rearward and radially outward in the respective guides. A coupling jaw threadedly engaging the screwthread of the chuck body is engageable with the pusher for axially coupling the coupling jaw to the pusher. The sleeve is coupled positively to the coupling jaw for joint rotation therewith.

Abstract: A quick change gripping apparatus for gripping a workpiece having a profile. The apparatus includes a cylindrical housing having a first end and a second end. The cylindrical housing also includes an inner feature having a tapered wall. The housing also has a bottom section and a clam shell section that is hingedly connected to the bottom section. The quick change gripping apparatus also includes a first ring and a second ring, each disposed around the cylindrical housing.

Abstract: A drill-chuck jaw hag an elongated metal body formed with a toothed back face and an opposite front face. The body is generally symmetrical to a longitudinal plane bisecting the back and front faces. A pair of hard-metal insert parts fixed to the front face are each formed with a projecting linear edge extending longitudinally parallel to but offset from the plane. The edges symmetrically flank the plane.

Abstract: There is provided a keyless chuck, a clutch assembly, and an associated method for releasably gripping a bit. The chuck includes a jaw assembly that is adjustable between open and closed positions, a threaded shaft in operable communication with the jaw assembly, and at least one clutch member. Each clutch member is adjustable between an engaged position and a disengaged position. In the engaged position, each clutch member threadably engages the threaded shaft, such that the threaded shaft translates axially and adjusts the jaw assembly between the open and closed positions.

Abstract: A chuck for use with a manual or powered driver having a drive shaft, the chuck including a body having a nose section and a tail section, the tail section configured to rotate with a drive shaft of a driver and the nose section having an axial bore formed therein, plurality of jaws disposed within the body in communication with the bore, each of the jaws having a jaw face formed thereon for engagement with a tool shaft, and a visual indicator disposed on the body and including a surface on which is defined a visual indicia that is in operative communication with the jaws so that movement of the jaws to a predetermined position with respect to the bore exposes the indicia to view from outside the chuck and so that movement of the jaws from the predetermined position blocks the indicia from view from outside the chuck.

Abstract: A quick chuck for a hand power tool has an actuating element, at least one arresting element for receiving a clamping support force, a control device having at least one control unit for controlling the at least one arresting element, the arresting element controllable by the control device producing a form-locking connection for receiving the clamping support force.

Abstract: A power tool chuck and bit shank system for attaching changeable tool bits to a power tool such as a router. The chuck includes a body having a bore which is sized to accept a tool bit shank. At least two movable gripping jaws are included for gripping the tool bit shank, which are moved with a tightening mechanism. At least one flat surface is provided in at least a section of the bore for mating with at least one corresponding flat surface provided on a tool bit shank to prevent rotational movement of the tool bit shank within the bore. A tool bit shank having a flat surface can be gripped in the chuck with hand tightening of the tightening mechanism, and a tool bit shank without a flat surface can be gripped in the chuck with assisted tightening of the tightening mechanism.

Abstract: A clamping jaw for a tool holder chuck, wherein the clamping chuck has two clamping jaws arranged spaced apart and diametrically opposite one another relative to an axis of rotation of the clamping chuck and moveable toward and away from one another for clamping a tool shaft by moving the clamping chuck with a radial component, has a longitudinal slot having a slot mouth open toward the axis of rotation and a slot bottom. The longitudinal slot receives positive-lockingly the tool shaft and has slot flanks defining an approach angle at the slot mouth and a slot bottom angle at the slot bottom. The approach angle is greater than the slot bottom angle. The clamping jaw is manufactured with a disc milling cutter with opposed milling cutter flanks located radially outwardly and positioned slantedly relative to one another at different flank angles. The flank angles increase toward a center of the cutter body.

Abstract: There is provided a keyless chuck, a clutch assembly, and an associated method for releasably gripping a bit. The chuck includes a jaw assembly that is adjustable between open and closed positions, a threaded shaft in operable communication with the jaw assembly, and at least one clutch member. Each clutch member is adjustable between an engaged position and a disengaged position. In the engaged position, each clutch member threadably engages the threaded shaft, such that the threaded shaft translates axially and adjusts the jaw assembly between the open and closed positions.

Abstract: A chuck for use with a manual or powered driver having a rotatable drive shaft includes a generally cylindrical body having a nose section and a tail section. The tail section is configured to rotate with the drive shaft and the nose section has an axial bore formed therein. A plurality of jaws are movably disposed with respect to the body toward and away from the axial bore. Each jaw includes a back surface and a tool engaging surface opposite the back surface. The tool engaging surfaces are disposed facing generally parallel to the axis of the axial bore and a plurality of grinds are defined across each tool engaging surfaces to form a helical pattern on the tool engaging jaw surfaces when the tool engaging surfaces are disposed at a predetermined position with respect to the axis of the axial bore.

Abstract: A precision drill sharpener and grinding wheel assembly is provided, as is a corresponding drill chuck for use with the drill sharpener, in which the drill sharpener includes a lever and spring clip alignment subassembly for properly positioning a drill in the drill chuck, and sharpening ports for sharpening the drill and splitting the drill tip, the sharpening ports being positioned such that a single grinding wheel assembly is used to both sharpen the drill and split the tip. The drill sharpener uses a small diameter grinding wheel operated at high speed to provide cutting rates comparable to large industrial sharpeners. The drill chuck is of short length, relative to most of the drills to be sharpened, and is open at the back end, enabling the manipulation of the drill by its shank relative to the drill chuck when disposed in the alignment subassembly.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. A generally cylindrical sleeve is in driving communication with the jaws. The sleeve engages the body or the jaws by a first set of interengaged threads so that relative rotation between the first threads drives the jaws toward or away from the chuck axis. The sleeve engages the body or the jaws by a second set of interengaged threads so that relative rotation between the second threads drives the jaws toward or away from the chuck axis. The first thread set defines a first pitch so that when the jaws close, the first threads rotationally lock in the closing direction. The second thread set defines a second pitch that is higher than the first pitch so that when the jaws close, the second threads are relatively rotatable in the closing direction.

Abstract: A clamping jaw for a jaw chuck comprises a base body of metal, wherein a hard metal clamping surface is fixed onto the base body. The clamping surface is formed of a plurality of hard metal particles of angular configuration.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. The tail section is configured to rotate with the drive shaft, and the nose section has an axial bore formed therein. The body defines an air passageway extending through the body between the axial bore and an area about the tail section. A generally cylindrically sleeve is disposed about the body and substantially encloses the area. It is configured to extend to a housing of the drill so that air from the fan is forced into the area, through the air passageway and into the axial bore.

Abstract: A drill chuck has a chuck body centered on an axis and formed with a forwardly open seat and with a plurality of angled guides spaced angularly about the axis and open forward into the seat. Respective jaws slidable in the guides each have a toothed outer edge meshing with a screwthread of a tightening ring rotatable about the axis to axially and radially displace the jaws in the body. An adjustment sleeve rotationally coupled to the ring is rotatable about the axis on the body. It has an outer grip surface of a predetermined outer diameter and an indicia band axially offset from the grip surface and of an outer diameter smaller than the outer grip surface.

Abstract: A tool driver includes a housing and a rotatable drive shaft extending therefrom. A chuck for holding the tool includes a generally cylindrical body having a nose section and a tail section. Each of a plurality of jaws is slidably positioned in one of a plurality of angularly disposed passageways in the body. Each jaw has a jaw face and threads formed thereon. A nut is in operative communication with the drive shall so that the drive shaft rotationally drives the nut. The nut threads engage the jaw threads so that rotation of the nut moves the jaws axially within the passageways. A sleeve is selectively actuatable to a first axial position and a second axial position. The sleeve defines a first slot that receives a detent mechanism in the first axial position and a second slot that receives the detent mechanism in the second axial position.

Abstract: A chuck has a body centered on an axis and formed with a rearwardly open bore adapted to fit with a drive spindle. Respective jaws are displaceable in angled guides of the body and a ring rotatable on the body has an internal screwthread meshing with the jaws for moving the jaws between their end positions on rotation of the ring. A latch element is radially displaceable on the body between a holding position projecting radially into the bore and locking the spindle therein and a freeing position clear of the bore. A sleeve is displaceable between a latched position forcing the element into the holding position and an unlatched position allowing it to move into the freeing position. A spring between the sleeve and the body urges the sleeve into the latched position. The spring is mostly forward of rear ends of the jaws in the rear-end positions thereof.

Abstract: A clamping jaw for a tool holder chuck, wherein the clamping chuck has two clamping jaws arranged spaced apart and diametrically opposite one another relative to an axis of rotation of the clamping chuck and moveable toward and away from one another for clamping a tool shaft by moving the clamping chuck with a radial component, has a longitudinal slot having a slot mouth open toward the axis of rotation and a slot bottom. The longitudinal slot receives positive-lockingly the tool shaft and has slot flanks defining an approach angle at the slot mouth and a slot bottom angle at the slot bottom. The approach angle is greater than the slot bottom angle. The clamping jaw is manufactured with a disc milling cutter with opposed milling cutter flanks located radially outwardly and positioned slantedly relative to one another at different flank angles. The flank angles increase toward a center of the cutter body.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. A generally cylindrical sleeve is in driving communication with the jaws. The sleeve engages the body or the jaws by a first set of interengaged threads so that relative rotation between the first threads drives the jaws toward or away from the chuck axis. The sleeve engages the body or the jaws by a second set of interengaged threads so that relative rotation between the second threads drives the jaws toward or away from the chuck axis. The first thread set defines a first pitch so that when the jaws close, the first threads rotationally lock in the closing direction. The second thread set defines a second pitch that is higher than the first pitch so that when the jaws close, the second threads are relatively rotatable in the closing direction.

Abstract: A clamping jaw for a jaw chuck comprises a base body of metal, wherein a hard metal clamping surface is fixed onto the base body. The clamping surface is formed of a plurality of hard metal particles of angular configuration.

Abstract: A drill/driver chuck mechanism has a cylindrical member 2 with a central axial bore 4. A plurality of further bores 6 are slanted with respect to the central axial bore 4. Jaws 8 each associated with a bore 6 are moveable via a jaw actuator 10. A jaw locking means 32-60 is coupled to the jaw actuator 10. The jaw locking means may move between an open position and a closed position such that the jaws may be locked within their respective bore 6 regardless of the degree of protrusion of the jaws 8 into the central axial bore 4.

Abstract: A chuck includes an integrally molded body member having a nose section and tail section. A plurality of jaws are slidably positioned in angularly disposed passageways in the nose section. A nut is rotatably mounted on the body and is in engagement with threads on the jaws. A reinforcing member is co-molded with the nose section about at least a portion of the outer circumference of the nose section. The tail section extends radially outward to form a gripping surface and axially forward to form a thrust bearing surface in operative engagement with the nut so that the nut transfers rearward axial force to the thrust bearing surface.

Abstract: A chuck includes a generally cylindrical body having a nose section and a tail section. A plurality of jaws are movably disposed with respect to the body to and away from the chuck's axial bore. Each jaw includes a tool engaging surface facing, and generally parallel to the axis of, the axial bore. Each jaw includes a back surface opposite the tool engaging surface and a pair of planar side surfaces extending from the tool engaging surface toward the back surface. The side surfaces are disposed on either side of a plane that includes the axis. The side surfaces define an angle through the jaw between the side surfaces that is greater than 120°.

Abstract: A non-impact keyless chuck suitable for use with manual or powered drivers is disclosed. The chuck comprises a body which carries a rotatable split nut having a relatively fine thread and a plurality of slidable jaws, which may be identical, driven by the rotatable nut. An anti-friction bearing is disposed between the rotatable nut and a bearing thrust ring mounted on the body. A clutch or torque limiting mechanism is provided to limit the tightening torque to a predetermined value while the loosening torque may be limited or unlimited. The front sleeve, and rear sleeve, if used, may be formed from a structural plastic to reduce manufacturing costs. A relatively soft elastomeric grip boot may be placed on the front sleeve to improve the grip and temporarily restrain and center the tool during chuck tightening or loosening operations. A relatively soft elastomeric grip boot may also be placed on the rear sleeve, if used.

Abstract: A chuck includes an integrally molded body member having a nose section and tail section. A plurality of jaws are slidably positioned in angularly disposed passageways in the nose section. A nut is rotatably mounted on the body and is in engagement with threads on the jaws. A reinforcing member is co-molded with the nose section about at least a portion of the outer circumference of the nose section. The tail section extends radially outward to form a gripping surface and axially forward to form a thrust bearing surface in operative engagement with the nut so that the nut transfers rearward axial force to the thrust bearing surface.

Abstract: A tool driver includes a housing and a rotatable drive shaft extending therefrom. A chuck for holding the tool includes a generally cylindrical body having a nose section and a tail section. Each of a plurality of jaws is slidably positioned in one of a plurality of angularly disposed passageways in the body. Each jaw has a jaw face and threads formed thereon. A nut is in operative communication with the drive shaft so that the drive shaft rotationally drives the nut. The nut threads engage the jaw threads so that rotation of the nut moves the jaws axially within the passageways. A sleeve is selectively actuatable to a first axial position and a second axial position. The sleeve defines a first slot that receives a detent mechanism in the first axial position and a second slot that receives the detent mechanism in the second axial position.

Abstract: A drill has a chuck with a body member and a bore to receive a cutting tool. A plurality of jaw members are coupled with the body to retain the cutting tool in the bore. A mechanism to secure the cutting tool in the jaws is coupled with the body. The mechanism applies a biasing force on the jaw members which enables the jaw members to slide on the body between a locked position securing the cutting tool in the jaw members and an unlocked position which enables egress and ingress of the cutting tool into and out of the jaw members.

Abstract: A chuck jaw that is configured and arranged to be used in combination with other chuck jaws for securely retaining a rotatable accessory, such as a drill bit, in position in a chuck assembly, where the chuck jaw includes a chuck jaw body that defines a generally longitudinal axis along the primary extension direction thereof and a chuck jaw tip that is positioned within the chuck jaw body and extends along at least a portion of the generally longitudinal axis of the chuck jaw body. The chuck jaw further includes an insulating material for preventing electrical current from passing between the rotatable accessory and the remainder of the chuck assembly via the chuck jaw.