Tapcon Installation Bit and Sleeve, 5/32 in Drill Bit Size, 4-1/2 in Overall Length, 3 in Max Drilling Depth, Carbide Tipped

These concrete screw-installation bits have three-flat shanks and install into rotary hammer drills or other drills with standard three-jaw chucks. They create a hole that's sized for setting compatible self-tapping concrete and masonry anchor screws and are also known as screw-anchor bits or concrete screw drill bits. These bits come with a drill sleeve that slides over the bits to stabilize them during drilling.