hex shank, these bits are impact ready and can be used with drills and impact drivers.

Designed with a 1/4' hex shank, these bits are impact ready and can be used with drills and impact drivers. 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. 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. An automated precision grinding process on each step reduces wear and delivers 2X faster cuts. M35 Four Spiral Flute Step Drill Bit Set 1/4'-3/4' 9 Sizes, 1/4' Hex Shank Drill Impact Resistant M35 Cobalt Step Drill Bit, for Stainless Steel, Wood, Aluminum, Plastic 4. The innovative Split Point Tip design enables a fast, on-point start resulting in increased durability and up to 6X longer life. Use in any corded/cordless drill to cut metal, plastics & steel.

Strict angle tolerances on each step for up to 2X faster cuts. Diablo Impact Step Drill Bit bring exclusive technology to the Electrician, Plumber and HVAC contractor with fast, accurate cuts and increased stability in thin metals, PVC other plastic materials. Split Point Tip for no pre-drilling, max durability, 6x life span.

Diablo impact step drill bit steps dsd