Z Nitro Heavy Duty Jobber Drill Bits 6 pack B3/4-10 x 1 3/4 Part # MS51959-53

Part # MS51959-53

Part # MS51848-30

7/64 Aircraft Extension Drill Bits 12" Length Black Oxide - Pack of 6

Part # BH063C100N

Z Nitro Heavy Duty Jobber Drill Bits 6 pack B3/4-10 x 1 3/4 Part # MS51959-53Need a large quantity? Request bulk pricing here. Z Nitro Heavy Duty Jobber Drills Pack of 6 Manufactured from a premium grade of M 7N molybdenum high speed steel. The Nitro Heavy Duty 135 degree Split Point drill with a Nitride surface treatment that give a hard protective layer to the drill (increases hardness without increasing brittleness) which is measurably harder than high speed steel. Body and clearance are gold and black surface treated for