#31 Nitro Heavy Duty Jobber Drill Bits 12 pack 9/16-12 x 4 3/4 Part # NAS1352N0412

Part # NAS1352N0412

#29 Aircraft Extension Drill Bits 12" Length Black Oxide - Pack of 6

Part #35237150SS-50

Part #43710F087-500

Part # 450T111

#31 Nitro Heavy Duty Jobber Drill Bits 12 pack 9/16-12 x 4 3/4 Part # NAS1352N0412Need a large quantity? Request bulk pricing here. #31 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