DORMER Countersink, Single End, 3/8 in Dia Body, 1-21/32 in Lg, 25/32 in Lg of Cut, Straight Shank, 1/4 in Dia Shank, Right Hand Cut, 9-1/2 mm Min Dia Cut, Bright

Countersink with 1-flute, 820 deg chamfering angle, maximum diameter 3/8 in with an overall length of 1.21/32 in and a head length of 25/32 in and 1/4 in straight shank, according to ANSI standard to produce a conical seat for US standard...

DORMER Countersink, Single End, Straight Shank, Right Hand Cut, High Speed Steel, Bright, 82 deg, 3 -Flute

An 82 deg Countersink for flat head cap screws and to chamfer holes. Versatile tool that can be used in both hand-held and machine applications. Suitable to chamfer holes in many materials.