Irwin Unibit 3/16 In. – 7/8 In. #4 Step Drill Bit, 12 Steps (10234)

Mfg. Part No.: 10234

Brand: Irwin

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.

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