Diablo's impact strong step bits bring exclusive technology to the electrician, plumber and HVAC contractor with fast, accurate cuts and increased stability in thin metals, PVC other plastic materials. The innovative split point tip design enables a fast, on-point start resulting in increased durability and up to 6X longer life. Diablo's impact strong step bits are impact ready and compatible with drills and impact drivers. An automated precision grinding process on each step reduces wear and delivers up to 2X faster cuts. Multiple hole sizes are made easy with laser etched step markings while increased step heights for common hole sizes makes drilling holes more efficient and faster.