1/2"-3/8" HSS Threaded Shank Stop Countersink BoltsandNuts.com The underside of the lid

The underside of the lid has a grid pattern that makes contact with the dividers

31/64" and 1/2")

Finish: Zinc Yellow

The single half-moon pawl maintains 9 teeth engaged with the gear at all times

The bit ratchet complements our High Torque 1/4 Inch Bit Driver

1/2"-3/8" HSS Threaded Shank Stop Countersink BoltsandNuts.com The underside of the lidProduct Description Countersink cutters may be used in all popular adjustable or micro stop countersinking units utilizing a 1 4 28 threaded shank drive. Made from the finest high speed tool steel. Precision ground to exacting tolerances and form relived to insure concentricity of 100 degree countersink angle. Brand Drill America Part Number TSC1 2 3 8 Size 1 2" 3 8" Material High Speed Steel Finish Uncoated (Bright) Body Diameter 1 2" Shank Type