Irwin 63116 Cobalt HSS Jobber Drill Bit 1/4 In

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 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.

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 3/8 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 1/8 inch with straight shank. Cobalt construction extends bit life on stainless and hardened steel vs standard HSS. Used in mechanical assembly drilling work.