High-Speed Steel Drill Bit, 3/4-In. Carts & Hangers Tested and certified to U

Tested and certified to U

tapered inflation needle

design eliminates "hunting" for correct drive pressure

free machining steels

Made of formed steel and finished in oil-rubbed bronze

High-Speed Steel Drill Bit, 3/4-In. Carts & Hangers Tested and certified to U3 4" high speed split point drill bit, 1 2" shank, helix is 31 degree which minimizes the over aggressiveness of a true parabolic flute, 135 degree split point for quick start & no walk applications, parabolic flute design improves chip ejection in metal & wood drilling applications, back oxide coating for greater resistance to wear, industrial grade steel, for drilling in metal, wood & plastic.