29/32" HSS Black & Gold Drill Bit with Reduced 1/2" 3-Flat Shank, Contractor Series BoltsandNuts.com They are calibrated to be

They are calibrated to be accurate within ±3% for both clockwise and counterclockwise directions and certified to the ISO standard for the full listed range (40 - 200 ft-lb)

Tap Drill Size #20

Tap Drill Size Q

manufacturing facility with USA-sourced materials

Part Number DEWPIL1X1/4

29/32" HSS Black & Gold Drill Bit with Reduced 1/2" 3-Flat Shank, Contractor Series BoltsandNuts.com They are calibrated to beProduct Description Contractor grade drill bit manufactured from M1 High Speed Steel and for use in a wide range of materials in the iron and steel families such aluminum, iron, steel and other metal drilling. Contractor Drill Bits have a 135 degree split point tip for self centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. They are black and gold surface treated. Reduced Shank Drills