“IRWIN” COBALT DRILL BIT 1/2″ DM-42 cobalt high speed steel for super abrasive resistance in tough metals135 degree split point reduces feed pressure for easier penetration.
“IRWIN” COBALT DRILL BIT 1/2″ DM-42 cobalt high speed steel for super abrasive resistance in tough metals135 degree split point reduces feed pressure for easier penetration.