Engineered for today’s most rugged trades this 5 pc. Multi-Material Drill Bit Set is as versatile as it is strong. It’s designed to power through power through brick, block, tile, metal, wood, plastic, and marble. These bits feature a unique carbide tip with a diamond-ground, four-facet design that has sharper cutting edges for fast starts. The innovative double-milled flute removes debris quickly to prevent clogging. Built for all standard 1/2 in. and 3/8 in. chuck drills.