Description
Interchangeable pilot type counterbore body with 4-flutes and corner radius, diameter 3/8″ with an overall length of 2.3/8″ and a flute length of 5/8″ and 1/4″ reduced 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 3/32″ 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
