13-Step Step Drill Bit 1/2 in Max Dual Flute 1/4 in Hex Shank

The Diablo DSD0500S13 is a high-performance 13-step drill bit engineered for precision and speed in professional electrical, plumbing, and HVAC applications. Featuring an optimized dual-flute design, this bit delivers 2X faster cuts and efficient chip removal, while the 132-degree split point tip eliminates the need for pre-drilling. Its 1/4-inch hex shank is impact-ready, providing maximum versatility for use with both standard drills and impact drivers. Manufactured using an automated CNC grinding process, it ensures strict angle tolerances and up to 6X longer life when drilling through thin metals, PVC, and various plastics.

Diablo's new step drill 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 4X longer life. An automated precision grinding process on each step reduces wear and delivers 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. Designed with a 1/4 in hex shank, these bits are impact ready and can be used with drills and impact drivers.