#53 Nitro Heavy Duty Jobber Drill Bits 12 pack 1/2-13 x 1 3/8 3/4 x 12 Masonry Drills

3/4 x 12 Masonry Drills Carbide Tip Bright SDS PLUS

Part # MS21318-36

Part # 137S10T100SS-100

Part # 400F121

#53 Nitro Heavy Duty Jobber Drill Bits 12 pack 1/2-13 x 1 3/8 3/4 x 12 Masonry DrillsNeed a large quantity? Request bulk pricing here. #53 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