5% cobalt and heavy-duty web construction for higher heat and abrasion resistance, strength and durability. Split point begins drilling immediately, minimizing bit walk in applications such as heavy-duty abrasive alloy metal drilling on hardened steel. Jobber length.

IRWIN 1/16"COBALT DRILL BIT

IRWIN 5/64 COBALT DRILL BIT

IRWIN 3/32 COBALT DRILL BIT

IRWIN 7/64 COBALT DRILL BIT

IRWIN 1/8 COBALT DRILL BIT

IRWIN 9/64 COBALT DRILL BIT

IRWIN 5/32 COBALT DRILL BIT

IRWIN 11/64 COBALT DRILL BIT CAR

IRWIN 3/16 COBALT DRILL BIT

IRWIN 7/32 COBALT DRILL BIT

IRWIN 1/4 COBALT DRILL BIT

IRWIN 9/32 COBALT DRILL BIT

IRWIN 5/16 COBALT DRILL BIT