#58 Nitro Heavy Duty Jobber Drill Bits 12 pack 5/16-24 x 2 1/2 Part #201037C0125SS-500

Part #201037C0125SS-500

1/4 x 15 Masonry Drills Carbide Tip Bright SDS MAX

Part # 450T015

Part # BH038C200N

Part # 450T060

#58 Nitro Heavy Duty Jobber Drill Bits 12 pack 5/16-24 x 2 1/2 Part #201037C0125SS-500Need a large quantity? Request bulk pricing here. #58 Nitro Heavy Duty Jobber Drills, High Speed Steel 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