Designed To Drill Common Steel (Flat Bar, Single Iron, Tubing), Wood And Plastic.
Manufactured To Aerospace Naps 907-B Specifications. 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. Black Oxide Pro Grade Drillbit 11/64" 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.