The Diablo Rebar Demon 1/2 in. x 6 in. SDS-Plus 4-Cutter Full Carbide Head Hammer Drill Bit is engineered for professionals who need maximum durability, speed, and precision when drilling through reinforced concrete, concrete, brick, and block. Designed to outperform standard 2-cutter bits in the most demanding conditions, this Diablo hammer drill bit features a full carbide head built to absorb the brutal impact of embedded rebar without sacrificing accuracy or bit life. Whether you are setting anchors in a rebar-dense slab or drilling through hard masonry, this SDS-Plus rotary hammer drill bit delivers fast, clean holes with dramatically reduced vibration compared to conventional options.

Key Features

• Up to 7X longer life versus standard 2-cutter hammer drill bits - fewer bit replacements per job means lower cost and less downtime on the worksite.
• Dura-Carbide with up to 2X more carbide content - withstands up to 1800 deg. Fahrenheit of intense heat while standard bits fail at 800 deg. Fahrenheit, keeping the cutting edge intact even after rebar strikes.
• Impact Resistant 4-Cutter Full Carbide Head - extracts smaller bites of rebar for controlled, consistent carbide wear and reduced vibration, delivering fast and precise holes in reinforced concrete.
• Tri-Metal Fusion Welding with up to 3X stronger weld - keeps the full carbide head intact during extreme impact such as rebar, preventing head breakage and extending bit life in the toughest conditions.
• Precision Tip geometry - delivers the stability and accuracy required for fast, precise holes in reinforced concrete, ideal for anchor setting applications.
• Optimized flute design removes dust faster - keeps the carbide head cooler for ultimate strength and durability, reducing heat buildup that degrades standard bits prematurely.
• Wear mark indicator - ensures precise hole depth making so you hit your target depth every time without guesswork.
• Optimized for corded and cordless SDS-Plus rotary hammers - compatible with a wide range of professional-grade tools for maximum versatility on any job site.

Why This Product

• Rebar no longer means a ruined bit - the 4-cutter full carbide head is specifically engineered to take controlled, smaller bites of rebar rather than absorbing a full shock, dramatically extending bit life and reducing vibration compared to standard hammer drill bits.
• The Dura-Carbide formulation handles heat up to 1800 deg. Fahrenheit - more than double the 800 deg. Fahrenheit threshold where standard bits fail - making this the right choice for continuous, high-powered drilling through dense reinforced concrete.
• Tri-Metal Fusion Welding creates a bond up to 3X stronger than conventional welding methods, so the carbide head stays intact under repeated rebar strikes and extreme rotary hammer impact forces.
• The combination of optimized flute design, wear mark indicator, and Precision Tip means faster dust evacuation, consistent hole depth accuracy, and clean anchor-ready holes - reducing the need for rework or hole cleaning on critical anchor setting tasks.

Specifications

• Brand: Diablo
• Sub-Brand: Rebar Demon
• Category: SDS-Plus 4-Cutter
• Diameter: 1/2 in.
• Length: 6 in.
• Working Length: 4 in.
• Shank: SDS-Plus
• Head Type: Full Carbide Head
• Number of Cutters: 4
• Compatible Tools: SDS-Plus Rotary Hammer Drill
• Compatible Materials: Reinforced Concrete; Concrete; Rebar; Brick/Block

Available Pack Options

• DMAPL4180: 1 Ea
• DMAPL4180-P25: 25 Pk

Approved Applications

• Drilling into reinforced concrete and concrete for anchor setting and fastening applications

Frequently Asked Questions

What makes the Rebar Demon bit different from a standard 2-cutter hammer drill bit?

The Rebar Demon features a 4-cutter full carbide head that takes smaller, more controlled bites of rebar rather than absorbing a full-force impact. This results in reduced vibration, controlled carbide wear, and up to 7X longer life compared to standard 2-cutter hammer drill bits. Tri-Metal Fusion Welding also creates a bond up to 3X stronger, keeping the head intact under extreme impact conditions.

What temperature can this bit withstand, and why does that matter?

The Dura-Carbide formulation in the Rebar Demon bit withstands up to 1800 deg. Fahrenheit of intense heat. Standard bits fail at 800 deg. Fahrenheit. This expanded heat tolerance is critical when drilling continuously through hard reinforced concrete, where friction-generated heat can rapidly degrade ordinary carbide tips and cause premature failure.

What type of rotary hammer is this bit compatible with?

This bit is designed for SDS-Plus rotary hammer drills and is optimized for maximum performance in both corded and cordless SDS-Plus rotary hammers. The SDS-Plus shank provides a secure, tool-free chuck connection that transmits the full impact energy of the hammer to the carbide head.

What is the purpose of the wear mark indicator on this bit?

The wear mark indicator is built into the bit to help the user achieve precise hole depth during drilling. This is especially useful in anchor setting applications in reinforced concrete, where hitting the correct embedment depth is critical for proper fastener performance and code compliance.