RED GRNT HMR BT 5/16X10" *Brand Name: Diablo *Sub Brand: SPEEDemon *Drill Size: 5/16 in. *Overall Length: 10 in. *Material: Carbide Tipped *Style: Red Granite *Product Type: Hammer Drill Bit *Shank Type: Round Shank *Number in Package: 1 pk *Packaging Type: Carded *Flute Length: 8 in. *Discovery ACC, CON, NBR, SUP, EXP