31/64 Nitro Heavy Duty Jobber Drill Bits 6 pack B1/2-13 x 3 1/2 Panel Thickness Inch:

Panel Thickness Inch:

Part # MS35338-143

Part # MS51957-89B

PROFERRED T-HANDLE HEX KEY - 1/4" x 6

31/64 Nitro Heavy Duty Jobber Drill Bits 6 pack B1/2-13 x 3 1/2 Panel Thickness Inch:Need a large quantity? Request bulk pricing here. 31 64 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