1/4 Nitro Heavy Duty Jobber Drill Bits 12 pack 3-1-2 Part #137S10T200SS-1000

Part #137S10T200SS-1000

fire resistance and temperature extremes

Part #40010F125BO-1000

Part #43710F125-100

1/4 Nitro Heavy Duty Jobber Drill Bits 12 pack 3-1-2 Part #137S10T200SS-1000Need a large quantity? Request bulk pricing here. 1 4 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