Abstract: A quick disconnect handle assembly includes a handle and a handle mount. The handle includes a shaft, a spring, and a pin at or near an end of the shaft and configured to restrain movement of the spring in a first direction. The handle mount includes a body having a first end and second end opposite the first end, a passageway through the body, and a first recess configured to receive the pin and lock the handle in the handle mount. The passageway has an inlet at the first end and an outlet at the second end and has a cross-sectional shape substantially the same as a cross-sectional shape of the shaft at the location of the pin, such that the shaft including the pin can be received in the passageway. The first recess opens at the outlet and extends longitudinally toward the inlet of the handle mount body.

Abstract: Disclosed herein is a crankbait tuning device comprising a main lever arm comprising a first main lever arm major side, a second main lever arm major side, and a first handle portion, the first lever arm major side comprising a first interlocking portion and a main lever arm threaded portion; a torque setting knob comprising a mating threaded portion, wherein the mated threaded portion is attached to the main lever arm threaded portion in mated threaded fashion; an opposing lever arm comprising a second handle portion and a first jaw portion, the opposing lever arm pivotally attached to the main lever arm; and a movable lever arm comprising a first movable lever arm major side and a second movable lever arm major side, wherein the first movable lever arm major side comprises a second jaw portion and a second interlocking portion, wherein the movable lever arm first major side is disposed between the torque setting knob and the main lever arm and pivotally attached to the main lever arm such that the first int

Abstract: An axially elongate dental machining portion includes a machining region machinable by a dental machining device, and a fixing region for fixing the machining portion to a holder of the machining device. In the fixing region is a fixing projection oriented transversely relative to the longitudinal axis. In a condition of the machining portion mounted in the holder, the fixing projection bears against a holding nose provided in complementary relationship on the holder. The machining region has a machinable surface which has a maximum spacing relative to the longitudinal axis, measured normal to the longitudinal axis, and the fixing projection has a maximum spacing relative to the longitudinal axis, measured normal relative to the longitudinal axis, that is greater than the maximum spacing of the surface relative to the longitudinal axis.

Abstract: A tool holder comprising an elongated connector means having a first end and a second end, where the elongated connector means has a central longitudinal hole, of a cross-section corresponding to a cross-section of a mounting portion of the tool bit, at the first end, and a tool mount at the second end, and a first sleeve arranged to reciprocally slide over the connector means between a first end position and a second end position, the first sleeve having a third end facing the tool bit and a fourth end facing the hand tool.

Abstract: A device for receiving a tool or support element in a machine tool or spindle has a tool carrier receiving member arranged in a machine tool or spindle and a tool carrier having a tool receiving member for a tool as well as a clamping device for securing the tool carrier in the tool carrier receiving member. The tool carrier has two areas, wherein a first area includes the tool receiving member and wherein a second area is designed to be received in the tool carrier receiving member. The second area includes the clamping device. The two areas are merged with one another in the axial direction of the device by overlapping the areas.

Abstract: A saw blade retention system for retaining a saw blade to a reciprocating saw includes a shaft connected to the saw for reciprocation and having a slot for receiving the saw blade. The saw blade retention system also includes a chuck disposed about the shaft and having a slot aligned with the slot in the shaft in an unlocked position for allowing the saw blade to be disposed in the slot for the shaft. The saw blade retention system further includes a cam-type mechanism for allowing the chuck to rotate angularly relative to the saw blade and shaft to a locked position to prevent the saw blade from exiting the slots and for allowing the chuck to move axially relative to the shaft to prevent axial movement of the saw blade between the chuck and the shaft. Complementary inclined surfaces are provided on the blade and the chuck to center the blade relative to its intended path of reciprocation.

Abstract: A saw blade retention system for retaining a saw blade to a reciprocating saw includes a shaft connected to the saw for reciprocation and having a slot for receiving the saw blade. The saw blade retention system also includes a chuck disposed about the shaft and having a slot aligned with the slot in the shaft in an unlocked position for allowing the saw blade to be disposed in the slot for the shaft. The saw blade retention system further includes a cam-type mechanism for allowing the chuck to rotate angularly relative to the saw blade and shaft to a locked position to prevent the saw blade from exiting the slots and for allowing the chuck to move axially relative to the shaft to prevent axial movement of the saw blade between the chuck and the shaft. Complementary inclined surfaces are provided on the blade and the chuck to center the blade relative to its intended path of reciprocation.

Abstract: A clamping device (3) for the saw blade (4) of a hand-operated compass sawing machine has a centering sleeve (7) for the clamped end (5) of the saw blade (4) and a clamping sleeve (10) rotatably mounted on the centering sleeve (7). During the rotation of the clamping sleeve (10) by means of a torsion spring (11), the clamping sleeve (10) is brought, via inclined planes, into the clamping position for the saw blade (4). To improve handling, and especially to make the adjusting member (27, 20) independent of the sawing stroke, a connection bush (27) with a gripping member (28), which connection bush is mounted axially nondisplaceably in the housing (1), is provided as an adjusting member.

Abstract: A chipper chisel retaining nut is provided with a circular groove in its threads which receives a formed flexible semi-circular spring ring which is inserted in the groove through an aperture formed in the exterior of the nut adjacent the groove as a device for preventing accidental unthreading of the nut.

Abstract: A chuck is provided for receiving and holding inserts having a non-circular shaft. The chuck includes a body having a non-circular cavity, and a capping sleeve rotatable on the body and extending beyond an end of the body. A locking plate is provided in the portion of the capping sleeve which extends beyond the end of the body, the locking plate having a non-circular opening with a profile corresponding to the profile of the cavity. The capping sleeve may be rotated relative to the body to the place the profile of the locking plate selectively in registry, or not, with the profile of the cavity.

Abstract: A chisel retaining device for a power operated percussion tool comprises a one-piece lock shell (20) which surrounds the chisel stem (17) and is pivotably supported on the front end of the tool housing (10). By pivoting the shell (20) about an axis (X) transverse to the chisel axis a large dimension part (29) or a small dimension part (28) of a front opening (27) of the shell (20) are alternatively aligned with the chisel (15) to prevent or permit passage of a flange (18) on the chisel (15). A spring means (24) is provided to keep the shell (20) in closed position. An internal annular shoulder (21) of the shell (20) cooperates with a toroidal spring (22) received in a circumferential groove (23) on the housing (10) to form an axial abutting means for the shell (20), and an inwardly projecting heel (31) forms together with the shoulder (21) and the toroidal spring (22) a pivot means for the shell (20).

Abstract: A tool driver for rotary cutting tools, such as reamers and drill bits, is described, along with rotary cutting tools of a novel design. The driver comprises a shank member having a cylindrical portion projecting axially from one end thereof and this cylindrical portion has at least two spline members projecting longitudinally from the end thereof remote from the shank. These spline members have curvilinear outer faces forming extensions of the cylindrical portion and also project inwardly to provide a central axial gap and radial gaps therebetween. A cylindrical sleeve member is rotatably mounted on the cylindrical portion and splines and this sleeve member has at the outer ends thereof radially inwardly projecting tab members which are adapted to engage notches in peripheral lands between the flutes of straight flute cutting tools when mounted in the driver.

Abstract: A saw blade retention system for retaining a saw blade to a reciprocating saw includes a shaft connected to the saw for reciprocation and having a slot for receiving the saw blade. The saw blade retention system also includes a chuck disposed about the shaft and having a slot aligned with the slot in the shaft in an unlocked position for allowing the saw blade to be disposed in the slot for the shaft. The saw blade retention system further includes a cam-type mechanism for allowing the chuck to rotate angularly relative to the saw blade and shaft to a locked position to prevent the saw blade from exiting the slots and for allowing the chuck to move axially relative to the shaft to prevent axial movement of the saw blade between the chuck and the shaft. Complementary inclined surfaces are provided on the blade and the chuck to center the blade relative to its intended path of reciprocation.