Brand Name: IRWIN | Finish: Nickel Plated | Material: Tungsten Carbide Tipped | Number in Package: 1 pc. | Overall Length: 6 in. | Packaging Type: Carded | Shank Type: Straight Shank | Usage: Use only in rotary drills | Drill Size: 1 in. Reduced shank carbide tipped percussion and rotary | Deep single flute removes drilling dust fast. | Diamond ground tip with more aggressive cutting angles for increase drilling speed. | Tungsten carbide tip for durability in concrete and brick.