Description
Interchangeable pilot type counterbore body with 4-flutes and corner radius, diameter 7/16″ with an overall length of 2.13/16″ 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 1/8″ and a maximum pilot guide diameter of 3/8″, HSS with standard bright finish for machining free machining and plain carbon steel, wrought and copper or copper alloys
