Two cutting edges with direct helix transition for faster and consistent drilling progress Optimized tip geometry and strong helix transition for longer life Wide helix spine for good dust transport and long life. Ideal for use with a wide range of light duty rotary hammers. Diameter: 3/8 inches. Working length: 4 inches. Length: 6 inches. For use with: concrete, brick, masonry: S Plus) Work Mod. E: Hammer drilling, drilling only Package quantity: 32 pieces Hilti PN: 2038101