#3 HSS Step Drill Bit, Black and Gold (1/4" - 3/4" x 16ths) 6" Cobalt Aircraft Fractional Drills QTY 1 STE1HEX (1/8" -

QTY 1 STE1HEX (1/8" - 1/2" x 32nds)

With a 135° split point tip

Thanks to its high red hardness

while the high red hardness allows for drilling speeds up to 30% faster than standard M2 HSS

They have a 1/4" Hex Shank that can be used in quick change impact drivers

#3 HSS Step Drill Bit, Black and Gold (1/4" - 3/4" x 16ths) 6" Cobalt Aircraft Fractional Drills QTY 1 STE1HEX (1/8" -Description Black and gold surface treated A single bit can be used for drilling a wide range of hole sizes in metal, plastic, and wood. The exclusive single radial concave flute creates perfectly round holes in metal, plastic, wood, and other thin materials without the need for center punching. Constructed of industrial grade high speed molybdenum steel, heat treated and temperature for long life Automatically deburrs the top side of the hole. Ideal