The Draper SDS Series drill bits are tough and precise. Made from an alloy-steel with a high-grade tungsten carbide tip for extra-long life. The double flute design ensures accuracy and clean holes. For use on concrete, masonry, brick, stone, marble, granite and blocks. Compatible with drills with an SDS Plus chuck. Tough and precise, made from an alloy-steel High-grade tungsten carbide tip for extra-long life Double flute design ensures accuracy and clean holes For use on concrete, masonry, brick, stone, marble, granite and blocks Compatible with drills with an SDS Plus chuck
