5/8"-1/4" HSS Threaded Shank Stop Countersink BoltsandNuts.com The ball end keys are

The ball end keys are made from 8660 nickel chromium molybdenum steel that's heat-treated to 54–58 HRC and the flat end keys are made from 6150 chromium vanadium steel that's heat-treated to 44–50 HRC

permanent connection that can't loosen over time • Tip geometry is machined to precise tolerances for an exact fit with Phillips fasteners • Extra-long bits allow you to reach deep into especially narrow

Cobalt roughing end mills are robust tools engineered for heavy-duty material removal in demanding machining operations

Size 5/32"

Part Number DWRRTPS1

5/8"-1/4" HSS Threaded Shank Stop Countersink BoltsandNuts.com The ball end keys areProduct 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 TSC5 8 1 4 Size 5 8" 1 4" Material High Speed Steel Finish Uncoated (Bright) Body Diameter 5 8" Shank Type