A system is proposed that is made up of a tool holder 1, a collet 15 with a clamping nut 19, and a tool insert 27, in which the collet 15 and the tool insert are fixed and positioned on various function surfaces within the tool holder 1. Nevertheless, the clamping means are the same, namely a thread on the tool holder 1.

Reducer sleeves are described herein. Reducer sleeves described herein comprise a reducer sleeve body having an axial forward end and an axial rearward end. The reducer sleeve body defines a longitudinal axis. Reducer sleeves further comprise a flange disposed at the axial forward end of the reducer sleeve body. The flange defines a first nozzle disposed at a first radial distance from the longitudinal axis and a second nozzle disposed at a second distance from the longitudinal axis. The reducer sleeve body defines a first trough extending from the axial rearward end to the axial forward end. The first trough is in communication with the first nozzle and the second nozzle, whereby coolant is able to enter the first trough and flow along the first trough and into the first nozzle and the second nozzle such that the coolant is ejected by the first nozzle and the second nozzle.

An integrated drill chuck for installing mine roof bolts includes a single integrated piece, the single integrated piece including a body defining a receiving cavity, where the receiving cavity is configured to receive and secure a bit having a square-shaped end and a bit having a hex-shaped end. A drill for installing mine roof bolts is also disclosed. A method for installing mine roof bolts is also disclosed.

An integrated drill chuck for installing mine roof bolts includes a single integrated piece, the single integrated piece including a body defining a receiving cavity, where the receiving cavity is configured to receive and secure a bit having a square-shaped end and a bit having a hex-shaped end. A drill for installing mine roof bolts is also disclosed. A method for installing mine roof bolts is also disclosed.

An accessory for coupling to an attachment mechanism of an oscillating power tool includes a working end, an opposite rear end, and a fitment portion adjacent the rear end portion. The fitment portion includes a central opening having a central portion and a rearward portion open to the rear end, and configured to receive a post of a tool clamping mechanism. The fitment portion further includes a first plurality of openings in communication with and extending radially outward from the central portion, a second plurality of openings not in communication with and positioned radially outward from the central portion. The central portion, the first plurality of openings, and the second plurality of openings are configured to couple the fitment portion to a plurality of different configurations of attachment mechanisms for oscillating power tools.

An accessory for coupling to an attachment mechanism of an oscillating power tool includes a working end, an opposite rear end, and a fitment portion adjacent the rear end portion. The fitment portion includes a central opening having a central portion and a rearward portion open to the rear end, and configured to receive a post of a tool clamping mechanism. The fitment portion further includes a first plurality of openings in communication with and extending radially outward from the central portion, a second plurality of openings not in communication with and positioned radially outward from the central portion. The central portion, the first plurality of openings, and the second plurality of openings are configured to couple the fitment portion to a plurality of different configurations of attachment mechanisms for oscillating power tools.

A workpiece clamping system for a measuring machine includes a rotary table disposed in a workpiece rotation axis and includes a chuck for the concentric accommodation of a workpiece, a rotary drive for the rotary table, an upper centering tip mountable or mounted on the measuring machine in the workpiece rotation axis vertically opposed to the rotary table, and a lower centering tip mountable or mounted on the rotary table in addition to the chuck for accommodating a workpiece between the centering tips instead of in the chuck, wherein the lower centering tip is provided and formed to be concentrically clamped in the chuck instead of a workpiece, and in that the workpiece clamping system is provided with a conveying device for vertically or vertically and horizontally conveying the lower centering tip into and from its clamping position in the chuck.

A power tool includes a housing and a motor disposed in the housing. The motor has an axial face and a motor shaft extending from the axial face. The power tool also includes a spindle driven by the motor about an output axis, a motor plate having a central opening defining an inner surface of the motor plate, and a tolerance ring coupled to the inner surface of the motor plate. The tolerance ring has deformable waves. The motor plate is coupled to the motor by engagement of the deformable waves with the motor to take up tolerances between the motor plate and the motor.

A power tool includes a housing and a motor disposed in the housing. The motor has an axial face and a motor shaft extending from the axial face. The power tool also includes a spindle driven by the motor about an output axis, a motor plate having a central opening defining an inner surface of the motor plate, and a tolerance ring coupled to the inner surface of the motor plate. The tolerance ring has deformable waves. The motor plate is coupled to the motor by engagement of the deformable waves with the motor to take up tolerances between the motor plate and the motor.

In an interface structure comprising a first assembly and a second assembly wherein the first assembly includes a cavity having a truncated cone-like section, a stop surface effective in the axial direction and a second assembly including a trunnion with a truncated cone-like section for abutment on the truncated cone-like sleeve section of the first assembly and an abutment surface for contacting the abutment surface of the first assembly, between the cavity and the trunnion a bayonet-like locking structure is provided in the interface structure whereby handling with a high repetition accuracy with regard to the position of the assemblies to be joined is ensured.