Irwin Unibit 7/8 In. & 1-1/8 In. #9 Step Drill Bit, 2 Steps

Single concave flute design creates perfectly round holes in thin materials including steel, brass, copper, and aluminum. Constructed of industrial grade, high speed molybdenum steel. SpeedPoint tip for fast starts.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer.