A vertical profile shot of the Diablo conical step drill bit, highlighting the precision-ground dual flutes and the laser-etched 15 steps for drilling varying hole sizes up to 1-3/8 inches.
Retail hanging card packaging for the Diablo 15-step impact step bit, featuring callouts for the 132-degree split-point tip, Accu-Grind precision cuts, and 3/8-inch shank with 3 flats.
A high-resolution product shot of the silver Diablo impact step drill bit, showing the 15-step conical design, dual flutes with laser-etched size markings, and the 3/8-inch shank.
A vertical profile shot of the Diablo conical step drill bit, highlighting the precision-ground dual flutes and the laser-etched 15 steps for drilling varying hole sizes up to 1-3/8 inches.
Retail hanging card packaging for the Diablo 15-step impact step bit, featuring callouts for the 132-degree split-point tip, Accu-Grind precision cuts, and 3/8-inch shank with 3 flats.
A high-resolution product shot of the silver Diablo impact step drill bit, showing the 15-step conical design, dual flutes with laser-etched size markings, and the 3/8-inch shank.
DIABLO

Diablo DSD1375S15 7/8 Inch to 1 3/8 Inch Step Drill Bit 15 Steps Impact Strong Split Point Tip for Metal PVC and Plastic 3/8 Inch Shank

Only 1 left
SKU: DSD1375S15
$69.97

Description

High-Performance Hole Making: Diablo 7/8" to 1-3/8" 15-Step Impact Step Drill Bit

The Diablo DSD1375S15 Step Drill Bit brings game-changing technology to Electricians, Plumbers, and HVAC contractors who require speed, precision, and extreme durability in thin metals, PVC, and various plastics. Featuring an innovative 132-degree Split Point Tip, this bit eliminates the need for pre-drilling or pilot holes, providing a fast, "on-point" start that resists bit walking. This advanced design, combined with an automated precision CNC grinding process, ensures strict angle tolerances on every step to deliver 2X faster cuts and up to 6X longer life compared to standard step bits.

Engineered for maximum jobsite efficiency, this 15-step bit is optimized for both corded and cordless tools, allowing for up to 75% more holes per battery charge when used in high-speed mode. The optimized dual-flute design ensures jam-free performance and superior chip removal, while the increased step heights for common hole sizes make drilling more efficient than ever. With a 3/8-inch shank featuring three flats, you can count on maximum stability and zero shank slippage in your drill chuck, even under high-torque applications. Laser-etched markings provide easy-to-read identification for all 15 steps, ensuring accuracy throughout the life of the tool.

Key Features

  • 6X Longer Life: The 132-degree Split Point Tip stays sharper longer and eliminates the need for pre-drilling.
  • 2X Faster Cuts: Automated Precision CNC Grinding delivers exact tolerances for minimal wear and rapid hole making.
  • Cordless Efficiency: Optimized design provides up to 75% more holes per battery charge in high-speed tool modes.
  • Anti-Slip Shank: 3/8” shank with 3 flats prevents bit slippage for increased safety and stability.
  • Jam-Free Drilling: Dual flute architecture is optimized for smooth, jam-free cuts and fast material evacuation.
  • Laser-Etched Markings: Easy-to-read, permanent laser markings for 15 different hole sizes ranging from 7/8" to 1-3/8".
  • Increased Step Heights: Designed specifically for common hole sizes to increase drilling speed and efficiency.

What's Included

  • (1) Diablo 7/8" to 1-3/8" Step Drill Bit (15 Steps) - DSD1375S15

Specifications

Brand Diablo Tools
Model Number DSD1375S15
Minimum Diameter 0.875 in (7/8")
Maximum Diameter 1.375 in (1-3/8")
Number of Steps 15
Shank Size 0.375 in (3/8")
Shank Type 3-Flat Shank
Overall Length 2.906 in (2-29/32")
Tip Angle 132° Split Point
Max Material Thickness 0.125 in (1/8") for Metal
Compatible Materials Metal, PVC, Plastics
Warranty Consumable (No Warranty)

Pro-Tip: When drilling through metal, use a small amount of cutting fluid or lubricant. While Diablo's precision grinding reduces friction, adding lubricant will further minimize heat buildup, keeping the steps sharp for even longer and ensuring the cleanest possible hole edges.