#3 HSS Black & Gold Step Drill Bit (1/4" - 3/4" by 1/16") Quantity:1 External Thread: 1-3/8"-12

External Thread: 1-3/8"-12

Flute Length 3-1/16"

& Butt Terminals

Shank Size: 33/64"

The durable hex key holders have self-aligning key slots that allow keys to be removed and inserted without moving others out of the way

#3 HSS Black & Gold Step Drill Bit (1/4" - 3/4" by 1/16") Quantity:1 External Thread: 1-3/8"-12Product Description Step drills have single radial concave flutes to create a perfectly round hole in metal, plastic wood and other thin materials without center punching. Constructed of industrial grade high speed molybdenum steel, heat treated and temperature for long life. Self starting tip. No center punching needed. Automatically deburrs top side of hole. Ideal for steel, copper, aluminum and other thin materials. They are Black and gold surface