5/16 Nitro Heavy Duty Jobber Drill Bits 6 pack 1/4-28 x 1 5/8 PROFERRED 1/2" DRIVE STANDARD METRIC

PROFERRED 1/2" DRIVE STANDARD METRIC SOCKET SET - 12 PIECE 12 POINT DEEP Item # S09301

Part # 1180C027

Part # 1200A105

PROFERRED COMBINATION WRENCH - 1 5/16" CHROME FINISH Item # T46024

Part #11114A100SS-1500

5/16 Nitro Heavy Duty Jobber Drill Bits 6 pack 1/4-28 x 1 5/8 PROFERRED 1/2" DRIVE STANDARD METRICNeed a large quantity? Request bulk pricing here. 5 16 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