A wrench with a movable mallet platform is proposed. The wrench with a movable mallet platform includes a wrench main body and a mallet platform. The wrench main body includes a shaft. The shaft includes at least one abutment surface. The mallet platform is slidably sleeved on the wrench main body, and includes at least one striking portion and two holding portions. An engagement surface extends toward the shaft from at least one striking portion, and the engagement surface abuts against the at least one abutment surface. The two holding portions are disposed opposite to each other, and each of the two holding portions is connected to the at least one striking portion. Thus, the wrench with a movable mallet platform of the present disclosure can be struck by a striking tool, thereby fastening or releasing a fastening member.

A cutting insert which is suitable for high cutting speed, a tool body thereof and a tool are provided. A tool according to the present invention is a tool in which a leading end thereof is provided with a force transmitting portion and for which a rotational axis extending from the leading end to a base end thereof is defined, wherein the tool comprises a cam portion which is arranged closer to the base end than the force transmitting portion and for which a dimension from the rotational axis of the tool varies in accordance with an angle at which the cam portion is rotated around the rotational axis.

A tap holder includes a body extending along an axis and having a front end portion defining a front opening and an externally threaded portion. A gripping assembly includes a spring having first and second legs, a first jaw mounted to the first leg, and a second jaw mounted to the second leg. Each jaw has a tapered outer wall and an inner wall with the inner walls of the jaws facing each other. A sleeve has an internally threaded bore threadably received on the externally threaded portion of the body, and an inner tapered surface configured to abut the tapered outer walls of the first and second jaws. As the sleeve is rotated relative to the body, a distance between the first and second gripping surfaces may be adjusted for gripping a tap between the inner walls of the first and second jaws. Each of the inner walls includes first and second gripping surfaces, the first gripping surfaces defining a first width therebetween for gripping taps having a first range of head sizes, and the second gripping surfaces defining a larger second width therebetween for gripping taps having a second, different range of head sizes.

A fastener removal tool system including a socket assembly. The socket assembly includes a cylindrical-body, with the cylindrical-body including an outer-cylindrical surface, an inner-cylindrical surface, a top-side, and a bottom-opening. The top-side preferably includes an opening to receive a torque providing tool. The inner-cylindrical surface includes a plurality of helical grooves nearest the bottom-opening to grip and removably affix to a head of a fastener to remove the fastener from a material when a torque is applied to the socket assembly by the torque providing tool.

A magnetic attraction socket structure includes a socket body and a magnetic attraction assembly mounted inside the socket body. The socket body includes an installation section formed therein at a top of which a stepped surface is formed. A circumferential groove is formed in an inner circumference of the socket body to correspond to a bottom of the installation section for receiving and holding an elastic ring clip therein. The magnetic attraction assembly has a top positioned against the stepped surface of the socket body. The magnetic attraction assembly includes an insulation jacket and an annular magnetic body, in which the insulation jacket having no permeability includes a receiving hole to receive the annular magnetic body to fit therein. The insulation jacket includes a stop on an inner circumference of the receiving hole for retaining the annular magnetic body in position.

Various implementations include a surgical screwdriver that comprises a first rotating shaft configured to be rotated about a respective longitudinal axis, a second rotating shaft extending along a respective development axis transverse to the longitudinal axis of the first shaft and having a shaped end tip which can be inserted into the head of a screw, and a transmission member interposed between respective first ends of the shafts to transfer the rotation from the first shaft to the second shaft. The transmission member comprises a homokinetic spherical joint.

Disclosed is a tightening tool for a screw element, having a tool receptacle and an associated line. A coupling part is provided, which is formed at a free end for engaging with the tool receptacle in a form-closed manner and transitions into a handle or can be coupled to a handle at the other end. The coupling part has an interior and at least one lateral opening for inserting or leading out the line at least at the free end of the coupling part. The interior and the opening extend to the free end and are open there. The invention further relates to a coupling part and to a screw element.

The invention relates to a screwing device (1) with two tools (2, 3) for producing or releasing a screw connection between two fastening elements (10, 11). For a simple and compact structure of the screwing device (1), the invention provides that the tools (2, 3) are during the operation of the screwing device (1) connected to one another for rotation about common rotation axes (D1, D2).

The invention relates to a screwing device (1) with two tools (2, 3) for producing or releasing a screw connection between two fastening elements (10, 11). For a simple and compact structure of the screwing device (1), the invention provides that the tools (2, 3) are during the operation of the screwing device (1) connected to one another for rotation about common rotation axes (D1, D2).

An LED light installation device facilitates removal and installation of LED type lights into can light housings in an elevated position. The device includes a collar having a first end. The first end is open wherein the collar is configured for receiving an extension pole into the first end. A plate is coupled to a second end of the collar. The plate has a planar upper surface. Each of a plurality of projections is coupled to and extends outwardly from the upper surface of the plate wherein the projections are configured for extending through gaps in a heat sink portion of an LED light when the LED light rests on the upper surface of the plate.