3/16” x 6” x 8" SDS plus drill bit 2 pack set – Ideal for use with concrete screws High quality SDS masonry hammer drill bits designed to work in masonry applications; brick, stone, concrete, and block. Compatible with all SDS Plus sized rotary hammer drills; Bosch, DeWalt, Hitachi, Hilti, Makita, Milwaukee, etc. SDS hammer drill bit feature 2-flute self-centering carbide tip ensuring fast cut speeds and MAXIMUM life Extended life – our concrete bits optimized design allows material to quickly exit the hole while allowing the concrete hammer drill bit to remain cool Sabre Tools 2-Pack 3/16 Inch x 8 Inch SDS Plus Rotary Hammer Drill Bits, Carbide Tipped for Brick, Stone and Concrete (3/16” x 6" x 8")