Diablo Hammer Drill Bit DMARG1200 3/4 Inch Diameter SPEEDemon (Carbide Tip 10 Inch Depth 12 Inch Length Hex Shank Concrete Granite Hole Boring)

Diablo DMARG1200 3/4-Inch x 10-Inch x 12-Inch SPEEDemon Red Granite Carbide Hammer Drill Bit

The Diablo DMARG1200 3/4-Inch x 10-Inch x 12-Inch SPEEDemon Red Granite Carbide-Tipped Hammer Drill Bit features high-density tungsten carbide cutting edges and a precision Grip Point Tip PLUS point to drill deep, wandering-free anchor holes through reinforced masonry. Engineered with an aggressive multi-ground head and an optimized U-flute profile, this impact-rated boring accessory evacuates abrasive stone dust rapidly to minimize thermal breakdown and extend cutter life up to 4X longer than standard masonry bits. Built with an Impact Strong hex shank that eliminates spinout in standard 3-jaw hammer drill chucks and 1/4-inch hex impact drivers, it equips concrete contractors, commercial electricians, and structural ironworkers with high-speed penetration across cured concrete, brick, natural granite, and architectural stone.

Best Used For:

• Structural Concrete Anchor Placement: Boring 3/4-inch diameter holes up to 10 inches deep for heavy mechanical wedge anchors, sleeve anchors, and epoxy-set threaded rod studs in commercial foundation slabs.
• Hard Stone & Granite Cladding Installation: Penetrating dense red granite, marble facades, and natural stone masonry without tip glazing or surface blowout.
• Heavy Conduit & Pipe Pass-Throughs: Drilling clean utility pass-through holes through poured concrete retaining walls, cinder blocks, and structural brickwork.

Key Performance & Safety Features

• Diablo Premium Carbide Tip: High-performance brazing and hardening process withstands severe percussion impact and friction heat, extending bit life up to 4X.
• Grip Point Tip PLUS Geometry: Multi-ground centering point ensures immediate biting on polished stone and smooth concrete, preventing bit skate.
• Optimized U-Flute Dust Removal: Wide spiral flutes eject hot masonry debris rapidly away from the cutting zone, keeping the tip cooler during continuous deep drilling.
• Impact Strong Hex Shank: Heavy-duty shank design prevents bit spinning in keyed or keyless drill chucks and provides seamless compatibility with cordless impact drivers.
• Multi-Mode Drill Versatility: Engineered for peak performance in both rotary-hammer percussive mode and standard rotary-only drilling tools.

What's Included

• (1) Diablo 3/4" x 10" x 12" SPEEDemon Red Granite Carbide-Tipped Hammer Drill Bit (DMARG1200)

Technical Specifications

Pro-Tip: When drilling deep 10-inch anchor holes in solid poured concrete, occasionally pulse the bit in and out of the borehole; clearing packed dust prevents flutes from binding and maintains maximum drilling speed.