SD SPADE BIT 5/16"X6" *Brand Name: Diablo *Drill Size: 5/16 in. *Overall Length: 6 in. *Material: High Speed Steel *Style: Clean Wood *Product Type: Spade Bit *Shank Type: Hex Shank *Number in Package: 1 pk *Packaging Type: Carded *Shank Diameter: 1/4 in. *Discovery ACC, CON, NBR, SUP, EXP