DRLL BT 3-FLAT 1/2" 1PC *Brand Name: Diablo *Sub Brand: Metal Demon *Drill Size: 1/2 in. *Overall Length: 6 in. *Material: Stainless Steel *Product Type: Drill Bit *Shank Type: 3-Flat Shank *Number in Package: 1 pc *Packaging Type: Carded *Shank Diameter: 1/2 in. *Flute Length: 4 in.