SD SPADE BIT 1"X16" *Brand Name: Diablo *Drill Size: 1 in. *Overall Length: 16 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