47031/2 6210074 Taper Shank Counterbore 3FL 1/2 inch

Interchangeable pilot-counterbore body with 3-flutes, diameter 1/2" with an overall length of 4.5/16" and a flute length of 1.1/4" and MT 1 Morse-taper shank, according to ANSI standard to produce a flat bottom seat for socket-head cap screws with the aid of a pilot with a shank diameter of 3/16" and a maximum pilot guide diameter of 7/16", HSS with standard bright finish for machining free machining and plain carbon steel, wrought and copper or copper alloys.