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 1/2 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 1/4 inch. Cobalt construction extends bit life on stainless and hardened steel vs standard HSS. Used in mechanical assembly drilling work.
Irwin heavy duty black oxide HSS jobber drill bit at 3/8 inch. Black oxide coating extends bit life over uncoated HSS. Heavy duty construction supports demanding drilling applications.
