585-91151 Features: -Three-flatted shank for secure grip. -Applications: Create Large Holes, Heavy-Duty Metal Drilling, Automotive, Body Shop, Metal Fabircation. -Cutting Edge Material: HSS. -Length Group: Regular. Number Of Bits: -1. Generic Dimensions: -For use in 1/2 drill chucks. -Flute Length: 3 in. -Overall Length: 6 in. Dimensions: Overall Product Weight: -0.48 Pounds.