K Nitro Heavy Duty Jobber Drill Bits 12 pack B1/2-20 x 1 1/8 Part # 174F21615

Part # 174F21615

Part # MS51959-1

exhaust stack bracing

Part # MS24693-S27

Part # 07890-150

K Nitro Heavy Duty Jobber Drill Bits 12 pack B1/2-20 x 1 1/8 Part # 174F21615Need a large quantity? Request bulk pricing here. K Nitro Heavy Duty Jobber Drills Pack of 12 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