Unibit Step Drill Bit
Unibit cobalt step drill bit is ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic, and laminates up to 1/8" thick. Single-flute cutting edge gives greater control through steps. TiN (titanium nitride) coated bits offer 6 times longer life. SpeedPoint tip ensures true starts and prevents walking. 3-sided flattened shank prevents slipping in drill chuck. Drills 2 hole sizes, 7/8" and 1-1/8". 1/8" shank. Carded.