Irwin Unibit 3/16 In. - 7/8 In. #4 Step Drill Bit, 12 Steps FIC Extra long nose provides for

Extra long nose provides for better row separation

compact design locks at a 0 degree or 30 degree angle and is designed for use with Shockwave Impact Duty 1/4" hex accessories

MILWAUKEE MX4 4-Cutter SDS Plus Rotary Hammer-Drill Bits provide up to 4x Life in Rebar and up to 20% more holes per charge in cordless rotary hammers

or closing door

Irwin Unibit 3/16 In. - 7/8 In. #4 Step Drill Bit, 12 Steps FIC Extra long nose provides forSingle 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.