Studio shot of the black Diablo 1-3/8 inch self-feed bit standing upright with a replacement feed screw next to the hex shank.
Retail packaging for the Diablo 1-3/8 inch SPEEDemon self-feed bit, featuring a clear case highlighting the 2-cutter design, speed capabilities, and wood cutting application.
Close-up action shot of the self-feed bit boring through a wooden stud, showing the cutter head exiting the material with wood debris.
Action shot of a black Diablo self-feed bit drilling horizontally into a light wood stud, showing the bit penetrating the surface.
Studio shot of the black Diablo 1-3/8 inch self-feed bit standing upright with a replacement feed screw next to the hex shank.
Retail packaging for the Diablo 1-3/8 inch SPEEDemon self-feed bit, featuring a clear case highlighting the 2-cutter design, speed capabilities, and wood cutting application.
Close-up action shot of the self-feed bit boring through a wooden stud, showing the cutter head exiting the material with wood debris.
Action shot of a black Diablo self-feed bit drilling horizontally into a light wood stud, showing the bit penetrating the surface.
DIABLO

Diablo DSF1375 1-3/8 Inch Self-Feed Drill Bit SPEEDemon 2-Cutter Head 7/16 Hex Shank High Speed Steel

Only 2 left
SKU: DSF1375
$39.89

Description

Maximize Cordless Runtime: Diablo SPEEDemon 1-3/8 Inch Self-Feed Bit

Drill faster and work longer with the Diablo DSF1375 1-3/8 in. SPEEDemon™ Self-Feed Bit. Engineered specifically to address the needs of plumbers, electricians, and general contractors, this bit utilizes a precision heat-forging process to create a tool with strict tolerances and exceptional durability. The advanced 2-cutter head design requires less energy to drive through the material, resulting in up to 2X more holes per battery charge compared to standard self-feed bits. Whether you are roughing in pipe or conduit through softwoods, this bit ensures your cordless tools operate at peak efficiency.

The performance is driven by an aggressive low-thread count feed screw that pulls the bit through wood effortlessly while resisting pitch build-up. To solve the common jobsite annoyance of losing feed screws, Diablo has integrated a unique pull-out stop mechanism that prevents the screw from slipping out when the bit is withdrawn from the material. Featuring a robust 7/16-inch hex shank, this bit provides a slip-free grip in high-torque drills, ensuring consistent power transfer and smooth, clean holes every time.

Key Features

  • Heat Forged Strength: Manufactured from premium steel on fully automated equipment for quality, consistency, and 2X longer life.
  • Cordless Efficiency: Energy-efficient 2-cutter design delivers up to 2X more holes per battery charge.
  • Fast Feeding: Aggressive low-thread count feed screw prevents pitch build-up for high-performance speeds.
  • Secure Screw Design: Pull-out stop mechanism prevents the feed screw from being lost during bit removal.
  • Smooth Drilling: Balanced cutting head reduces vibration and effort in softwoods.
  • Heavy-Duty Shank: 7/16" Hex shank ensures maximum torque transfer and eliminates chuck slippage.

What's Included

(1) Diablo 1-3/8" SPEEDemon™ Self-Feed Bit (DSF1375)
(1) Replacement Feed Screw
(1) Allen Key

Specifications

Brand Diablo Tools
Model Number DSF1375
Bit Diameter 1-3/8 in
Overall Length 5-1/8 in
Shank Diameter 7/16 in Hex
Material Application Soft Wood, Clean Wood
Bit Material High Speed Steel (Heat Forged)
Chuck Requirement 1/2 in Drill Chuck
Feed Type Self-Feed Screw
Pack Quantity 1

Pro-Tip: The 1-3/8" size is often used for running 3/4" or 1" PEX and copper lines where a tighter fit is preferred over the larger 1-1/2" holes. Because the self-feed screw pulls the bit aggressively, always brace your drill firmly or use the auxiliary side handle to prevent wrist strain when the bit engages the wood.