Long masonry drill bit with alternating red and silver spiral flutes and pointed tip, designed for drilling into concrete, brick, or stone with a power drill-compatible shank.
Packaged Diablo Red Granite drill bit labeled as 1/4 inch diameter and 12 inch length, featuring red and silver spiral design and branding for use on granite and other hard materials.
Long masonry drill bit with alternating red and silver spiral flutes and pointed tip, designed for drilling into concrete, brick, or stone with a power drill-compatible shank.
Packaged Diablo Red Granite drill bit labeled as 1/4 inch diameter and 12 inch length, featuring red and silver spiral design and branding for use on granite and other hard materials.
Diablo

Diablo SPEEDemon Hammer Drill Bit 1/4 Inch x 12" Length 10 Inch Working Depth Carbide Tipped Red Granite Concrete Masonry Stone Hex Shank DMARG1090

In stock
SKU: DMARG1090
$14.97
Description

Precision Meets Power—Drill Faster, Cleaner, and Longer in Concrete and Stone

The Diablo DMARG1090 SPEEDemon Red Granite Hammer Drill Bit is engineered for professionals who demand speed, durability, and precision in concrete, masonry, and stone applications. With a 1/4" diameter, 12" overall length, and 10" working depth, this carbide-tipped bit delivers aggressive starts and clean holes in granite, brick, marble, and block. The multi-ground Grip Point tip ensures fast penetration, while the Impact Strong™ hex shank eliminates slippage in cordless and corded hammer drills. A proprietary brazing and hardening process extends carbide life for up to 4X longer performance compared to standard bits.

Key Features

  • Grip Point tip enables aggressive starts and clean, fast holes
  • Optimized U-flute design clears dust quickly to keep the tip cooler
  • Diablo-made carbide tip resists impact and heat for extended life
  • Impact Strong™ hex shank prevents spinning and improves stability
  • Compatible with cordless and corded hammer and rotary drills
  • Ideal for concrete, masonry, stone, marble, and granite

What's Included

  • (1) Diablo SPEEDemon Hammer Drill Bit – 1/4" Diameter, 12" Length, 10" Working Depth

Specifications

Brand Diablo by Freud
Model DMARG1090
Diameter 1/4"
Length 12"
Working Depth 10"
Shank Type Hex
Application Concrete, Masonry, Stone, Granite

If you're working on a multi-material jobsite, consider pairing this bit with the Bosch GSB18V-490 18V Brushless Hammer Drill for versatile power and runtime. It’s a smart match for contractors who need precision across concrete, wood, and metal.