Diablo 7/8 In. - 1-3/8 In. Impact Step Drill Bit, 15 Steps Senco Requires 2-1/8" diameter crossbore hole

Requires 2-1/8" diameter crossbore hole and a 1" diameter edge bore

3-hole gauge in 1/2" increments

Features easy control adjustment

and over 700 Yd

Diablo 7/8 In. - 1-3/8 In. Impact Step Drill Bit, 15 Steps Senco Requires 2-1/8" diameter crossbore holeDiablos Step Drill Bits bring exclusive technology to the Electrician, Plumber and HVAC (heating, ventilation and air conditioning) contractor with fast, accurate cuts and increased stability in thin metals, PVC (polyvinyl chloride), and other plastic materials. The innovative Split Point Tip design enables a fast, on point start resulting in increased durability and up to 4X longer life. An automated precision grinding process on each step reduces