14015 Features: -Double flute masonry bits are ideal for drilling in brick, cinder block, and tile. -Drills twice as fast as standard masonry bits. -Carbide tip minimizes wear and extends the life of the bit. -For use in corded and cordless rotary drills only. Unit Material: -Steel. Use Material: -Metal. Product Type: -Screwdriver Bits. Use: -Drill Bits. Generic Dimensions: -3/16'' diameter. Dimensions: Overall Product Weight: -0.08 Pounds.