When you’re faced with reinforced concrete and stubborn rebar, you need a bit you can trust to cut cleanly and keep going. The Diablo Rebar Demon 9/16 in. x 12 in. Carbide Hammer Drill Bit with SDS-Plus Shank is built for the real worksite—delivering durable performance where standard bits falter.
Why this Diablo Rebar Demon stand out
Carbide-tipped for exceptional wear resistance, this drill bit is designed to slice through hard concrete while resisting edge deformation from embedded rebar. The SDS-Plus shank locks into your hammer drill with rock-solid stability, ensuring efficient energy transfer and reduced wobble in demanding drilling jobs. At 12 inches long overall with a 10-inch flute, it reaches deep into thick walls and slabs while maintaining aggressive material removal.
Key features at a glance
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Diameter: 9/16 in. for mid-size anchor and bolt holes
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Overall length: 12 in. for deep drilling into concrete and masonry
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Flute length: 10 in. to evacuate cuttings efficiently and reduce stalling
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Tip material: Carbide for extended life when hitting rebar and tough concrete
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Shank type: SDS-Plus for secure, quick-change compatibility with compatible hammer drills
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Packaging: Hang Tag — sold as a single piece
What problems it solves
- Drilling through reinforced concrete without rapid dulling or chipping of the tip
- Creating deep anchor holes in thick slabs and walls where standard bits struggle
- Maintaining consistent hole diameter and clean edges even when rebar is encountered
Ideal use cases
- Installing masonry anchors, bolts, or threaded studs in concrete with embedded steel reinforcement
- Creating long holes in foundations, columns, or load-bearing walls where rebar is present
- Renovation or retrofit work that requires reliable, durable masonry drilling tools
Pro tips for best results
- Use a hammer drill with an SDS-Plus chuck to maximize energy transfer and reduce bit wander
- Start at a low to moderate speed; let the carbide edge do the cutting and avoid forcing the bit
- Pause periodically to clear debris from the flutes and prevent overheating
- When hitting noticeably tough sections or rebar, apply steady pressure and maintain steady rotation to minimize tip stress
Who should consider this bit
Perfect for professional masons, concrete drillers, and serious DIYers tackling thick concrete assemblies, foundations, or walls with embedded reinforcement. If you need reliable, long-lasting performance in demanding conditions, this bit is designed to deliver.
Experience reinforced-concrete drilling with confidence. The Diablo Rebar Demon 9/16 in. x 12 in. Carbide Hammer Drill Bit with SDS-Plus Shank advances your projects with durable geometry, efficient waste removal, and a fit that stays secure under heavy use.
