
Irwin Impact Turbomax Drill Bit *Sub Brand: Turbomax *Drill Size: 5/16 in. *Overall Length: 3-1/2 in. *Material: Steel *Product Type: Impact Drill Bit *Number in Package: 1 pc. *Finish: Black Oxide *Packaging Type: Carded *Shank Diameter: 1/4 in. *Flute Length: 1-9/64 in. *Shank Type: Quick-Change Hex Shank *Withstands higher torque loads than standard quick-change bits. Minimizes walking. Delivers 10x faster starts. Stays sharp longer. Black oxide finish.