Irwin 30516 Left Hand Mechanics Length Cobalt HSS Drill Bit 1/4 In Split Point

Irwin cobalt HSS jobber drill bit at 1/4 inch. Cobalt construction extends bit life on stainless and hardened steel vs standard HSS. Used in mechanical assembly drilling work.

Irwin cobalt HSS jobber drill bit at 1/2 inch. Cobalt construction extends bit life on stainless and hardened steel vs standard HSS. Used in mechanical assembly drilling work.

Irwin cobalt HSS left hand drill bit at 5/16 inch with 135 degree split point. Left hand rotation supports broken bolt removal where right hand rotation would tighten the broken fastener. Cobalt...

Irwin cobalt HSS jobber drill bit at 3/16 inch. Cobalt construction extends bit life on stainless and hardened steel vs standard HSS. Used in mechanical assembly drilling work.

Irwin cobalt HSS jobber drill bit at 15/64 inch. Cobalt construction extends bit life on stainless and hardened steel vs standard HSS. Used in mechanical assembly drilling work.