Diablo Tool 7/8 in – 1-3/8 in Step Drill Bit

Edge of Arlington offers free shipping in the United States when you choose flat rate shipping.

DSD1375S15 not compatible with impact drivers.

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, and 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. Split Point Tip (132°) makes pre-drilling obsolete and stays sharper longer, resulting in increased speed, maximum durability, and up to 6X longer life.

Automated Precision CNC Grinding Process delivers strict angle tolerances on each step for minimal bit wear and 2X faster cuts in drilling and hole making
Exclusive design delivers corded and cordless tool efficiency in high-speed mode for up to 75% more holes per battery charge
3/8” Shank with 3 Flats increases bit stability by preventing shank slippage during tool usage
Optimized dual flute design for jam-free cuts
Increased step heights for easier drilling of common hole sizes
Easy to read, laser marked steps for drilling holes of varying sizes

Ideal for metal (up to 1/8” thickness), PVC, and other plastic materials

Ideal for electrical, plumbing, and HVAC contractors