Black Oxide Pro Grade Drillbit 17/64" Manufactured To Aerospace Naps 907-B Specifications..Drill Bits Black Oxide Pro Grade. Black Oxide Drill Bits Are Manufactured From Industrial High Speed Steel, Surfaced Treated For High Performance And Long Life.
Black Oxide Pro Grade Drillbit 17/64" Manufactured To Aerospace Naps 907-B Specifications.Drill Bits Black Oxide Pro Grade. Black Oxide Drill Bits Are Manufactured From Industrial High Speed Steel, Surfaced Treated For High Performance And Long Life. No Center Punch Needed: Century Quick-Cut Points Are Self Centering And Penetrate Faster With Less Pressure, Will Not Walk Or Wander At The Starting Surface.