5/32 x 3-1/2" Tapcon Carbide Masonry Drill Bit, 11256 ITW Brands

Precise drilling for optimal performance. Carbide-tipped bits are strong and durable. Tighter bit tolerance provides maximum anchor performance. Use a 5/32" drill bit to install 3/16" Tapcon anchors. Diameter: 5/32, Length: 3-1/2", For use with fastener diameter: 3/16", For use with fastener length: 1-1/4" to 1-3/4".