Simpson Strong-Tie's 9/16 x 18 in. SDS-Plus® 2-Cutter Head Carbide Drill Bit combines a carbide cutting head with a steel body designed for rotary-hammer drilling applications. Its fluted design helps move drilling debris from the hole during use, while the 2-cutter configuration provides a straightforward solution for concrete and masonry drilling where carbide-tipped performance is required. The SDS-plus® interface supports quick bit changes and compatibility with suitable rotary hammers, helping simplify work on anchor installations, concrete fastening, and general construction projects. With its extended overall length, the bit is particularly useful when the application calls for deeper drilling than shorter masonry bits can provide.