Diablo DMARG1140 7/16" x 4" x 6" SPEEDemon™ Red Granite PLUS™ Carbide-Tipped Hammer Drill Bit
MPN: DMARG1140
Minimum order quantity is .
Introducing the Diablo DMARG1140 7/16" x 4" x 6" SPEEDemon™ Red Granite PLUS™ Carbide-Tipped Hammer Drill Bit—the hard-wearing solution for fast, precise holes in concrete, masonry, and stone. Built to endure high heat and relentless drilling, this bit stays cooler longer and delivers cleaner results even in demanding jobs.
What makes this bit extraordinary?
- Carbide-tipped durability with a unique brazing and hardening process that resists heat and wear, so you can drill more holes before needing a replacement.
- Grip Point Tip PLUS™ provides aggressive starts and consistently clean holes, reducing wandering and ensuring you hit your mark right away.
- Impact Strong™ shank stability enhances performance in both cordless and corded impact and drill drivers, delivering consistent power and reducing vibration for smoother operation.
- Industry-leading life up to 4× longer than standard bits in tough materials, meaning fewer bit changes on long jobs and lower overall cost per hole.
- Specialized for tough substrates engineered specifically for concrete, masonry, and stone work—no shimming, no guesswork, just fast, accurate holes.
- Precise sizing measures 7/16" in diameter with a 4" flute length and a 6" overall length, giving you the reach and control needed for deeper anchors and embedded hardware.
Why contractors and serious DIYers choose SPEEDemon Red Granite PLUS
When you’re drilling into reinforced concrete, brick, or natural stone, standard bits can overheat, dull quickly, and wander off your intended line. The DMARG1140 changes that by combining a heat-tolerant carbide tip with a robust grip and shank design. The result is faster starts, straighter holes, and a longer service life—so you finish more work with fewer tool changes.
Who should use this bit? Ideal for electricians, plumbers, masons, and remodelers who repeatedly drill anchor holes, run conduit, or create clean openings in hard-to-bore materials. It also suits industrial settings where downtime is costly and precision matters—from new construction to renovation projects.
How this bit compares to typical options:
- Drilling speed and edge retention are superior thanks to the optimized brazing/hardening process and carbide composition.
- The Grip Point Tip PLUS design minimizes wandering and accelerates hole start quality, reducing rework.
- Impact Strong shank stability translates to better energy transfer from your drill to the bit, whether you’re using a cordless impact driver or a corded hammer drill.
Practical tips for best results:
- Use steady, moderate pressure and let the bit do the work—avoid pushing aggressively, which can overheat the tip.
- Keep the drill speed appropriate for the material—higher RPMs for masonry with steady advancement; pause briefly if you notice excessive heat or smoke.
- Let the bit cool during long runs to maximize tip life and maintain clean hole edges.
- Pair with a high-quality hammer drill or rotary hammer and a compatible SDS or standard chuck, depending on your tool model.
Whether you’re upgrading from standard masonry bits or equipping a crew for demanding job sites, the Diablo DMARG1140 SPEEDemon Red Granite PLUS Carbide-Tipped Hammer Drill Bit offers unmatched durability, precision, and speed. Add it to your toolkit and experience faster starts, cleaner holes, and longer bit life on every concrete, masonry, or stone project.
Introducing the Diablo DMARG1140 7/16" x 4" x 6" SPEEDemon™ Red Granite PLUS™ Carbide-Tipped Hammer Drill Bit—the hard-wearing solution for fast, precise holes in concrete, masonry, and stone. Built to endure high heat and relentless drilling, this bit stays cooler longer and delivers cleaner results even in demanding jobs.
What makes this bit extraordinary?
- Carbide-tipped durability with a unique brazing and hardening process that resists heat and wear, so you can drill more holes before needing a replacement.
- Grip Point Tip PLUS™ provides aggressive starts and consistently clean holes, reducing wandering and ensuring you hit your mark right away.
- Impact Strong™ shank stability enhances performance in both cordless and corded impact and drill drivers, delivering consistent power and reducing vibration for smoother operation.
- Industry-leading life up to 4× longer than standard bits in tough materials, meaning fewer bit changes on long jobs and lower overall cost per hole.
- Specialized for tough substrates engineered specifically for concrete, masonry, and stone work—no shimming, no guesswork, just fast, accurate holes.
- Precise sizing measures 7/16" in diameter with a 4" flute length and a 6" overall length, giving you the reach and control needed for deeper anchors and embedded hardware.
Why contractors and serious DIYers choose SPEEDemon Red Granite PLUS
When you’re drilling into reinforced concrete, brick, or natural stone, standard bits can overheat, dull quickly, and wander off your intended line. The DMARG1140 changes that by combining a heat-tolerant carbide tip with a robust grip and shank design. The result is faster starts, straighter holes, and a longer service life—so you finish more work with fewer tool changes.
Who should use this bit? Ideal for electricians, plumbers, masons, and remodelers who repeatedly drill anchor holes, run conduit, or create clean openings in hard-to-bore materials. It also suits industrial settings where downtime is costly and precision matters—from new construction to renovation projects.
How this bit compares to typical options:
- Drilling speed and edge retention are superior thanks to the optimized brazing/hardening process and carbide composition.
- The Grip Point Tip PLUS design minimizes wandering and accelerates hole start quality, reducing rework.
- Impact Strong shank stability translates to better energy transfer from your drill to the bit, whether you’re using a cordless impact driver or a corded hammer drill.
Practical tips for best results:
- Use steady, moderate pressure and let the bit do the work—avoid pushing aggressively, which can overheat the tip.
- Keep the drill speed appropriate for the material—higher RPMs for masonry with steady advancement; pause briefly if you notice excessive heat or smoke.
- Let the bit cool during long runs to maximize tip life and maintain clean hole edges.
- Pair with a high-quality hammer drill or rotary hammer and a compatible SDS or standard chuck, depending on your tool model.
Whether you’re upgrading from standard masonry bits or equipping a crew for demanding job sites, the Diablo DMARG1140 SPEEDemon Red Granite PLUS Carbide-Tipped Hammer Drill Bit offers unmatched durability, precision, and speed. Add it to your toolkit and experience faster starts, cleaner holes, and longer bit life on every concrete, masonry, or stone project.