One or more specific versions disclosed herein include a grinding assembly for grinding a welding rod, which grinding assembly may include: a pedestal; a motor having a drive shaft extending through the pedestal; a chuck coupled to the drive shaft; a housing coupled to the pedestal; an abrasive disc coupled to the chuck and disposed within the housing; and a ball joint coupled to the housing and capable of spherical rotation, the ball joint comprising an aperture capable of receiving a portion of the welding rod.

A tool includes a handle having a proximal end and a distal end, wherein the handle includes a first cylindrical cavity extending into the handle from an opening in the distal end and having a first cylindrical wall. The tool further includes a radial bearing having an inner race, an outer race, and rolling elements, wherein the outer race is secured to the first cylindrical wall of the first cylindrical cavity. Still further, the tool includes a central shaft having proximal and distal sections, wherein the proximal section is secured to the inner race, and wherein the distal section extends from the first cylindrical cavity and includes external screw threads. The tool additional includes a chuck threadably coupled to the external screw threads, wherein the chuck includes self-centering jaws for selectively gripping a tungsten electrode along an axis of rotation established by the radial bearing.

A tool includes a handle having a proximal end and a distal end, wherein the handle includes a first cylindrical cavity extending into the handle from an opening in the distal end and having a first cylindrical wall. The tool further includes a radial bearing having an inner race, an outer race, and rolling elements, wherein the outer race is secured to the first cylindrical wall of the first cylindrical cavity. Still further, the tool includes a central shaft having proximal and distal sections, wherein the proximal section is secured to the inner race, and wherein the distal section extends from the first cylindrical cavity and includes external screw threads. The tool additional includes a chuck threadably coupled to the external screw threads, wherein the chuck includes self-centering jaws for selectively gripping a tungsten electrode along an axis of rotation established by the radial bearing.

A probe pin cleaning pad including a foam layer, a cleaning layer, and a polishing layer is provided. The cleaning layer is disposed between the foam layer and the polishing layer. A cleaning method for a probe pin is also provided.

A cleaning material for predictably cleaning the contact elements and support hardware of a tester interface, such as a probe card and a test socket, has a cleaning pad layer, one or more intermediate layers having a set of predetermined characteristics and having a plurality of abrasive particles.

A cleaning material for predictably cleaning the contact elements and support hardware of a tester interface, such as a probe card and a test socket, has a cleaning pad layer, one or more intermediate layers having a set of predetermined characteristics and having a plurality of abrasive particles.

The invention relates to a drill comprising a body which extends along a longitudinal axis (L) from a rear side (B) to a front side (F), wherein the body comprises a main cutting edge on the front side (F), wherein the body comprises at least one guide bevel which extends in axial direction (A) and toward the front side (F), wherein, toward the front side (F), the guide bevel has an end section which is tapered. The invention further relates to a method for producing such a drill.

The invention relates to a drill comprising a body which extends along a longitudinal axis (L) from a rear side (B) to a front side (F), wherein the body comprises a main cutting edge on the front side (F), wherein the body comprises at least one guide bevel which extends in axial direction (A) and toward the front side (F), wherein, toward the front side (F), the guide bevel has an end section which is tapered. The invention further relates to a method for producing such a drill.

A probe sanding fixture includes a base, a probe adapter including a probe guide defining one or more channels defined therein, and a sander tool including a sanding wheel and a gauge pin configured to process one or more probes positioned in the channels. The probe adapter is coupleable to the base such that the channels are extendable generally along a first axis. The sander tool is coupled to the base such that the sander tools is translatable along a second axis and rotatable about the first axis.

Provided is a method for grinding electrode tips such that the method is capable of detecting irregular grinding when the maximum torque does not occur. Specifically, a tip dresser includes a holder holding a cutter, a servo motor unit allowing the holder to rotate, and a controller controlling the operation of the servo motor unit. The servo motor unit outputs a torque occurrence signal to the controller when a load torque reaches a predetermined value in regular grinding of a pair of electrode tips. The controller detects irregular grinding when not receiving the torque occurrence signal within a time that corresponds to an elapsed time in the regular grinding.