[SIZE]: 3/8" Shank Diameter.

[MATERIAL]: Tool steel, all working surfaces are hardened, and ground.

[FEATURES]: Rated up to 1,000 RPM. Locates round or flat work to within .0005" accuracy.

[USAGE]: Place in a standard 1/2" diameter collet or chuck to use, and as it rotates and approaches the working edge, the head moves sideways approximately 1/32". The center of the finder is exactly half the head diameter away from the work.

[APPLICATION]: Used in a milling machine to find the workpiece edge. Single-end usability.