G7023/8 Counterbore Body, Straight Shank

Interchangeable pilot type counterbore body with 3-flutes, diameter 3/8" with an overall length of 4.1/16" and a flute length of 1" and 5/16" straight shank, according to ANSI standard to produce a flat bottom seat for socket-head cap screws with the aid of a detachable pilot with a mounting diameter of 5/32" and a maximum pilot guide diameter of 5/16", HSS with standard bright finish for machining free machining and plain carbon steel, wrought and copper or copper alloys