The Diablo 1-1/4 in. x 24 in. x 29 in. Rebar Demon SDS-Max 4-Cutter Full Carbide Head Hammer Drill Bit is engineered for professionals who demand maximum durability and speed when drilling through reinforced concrete, standard concrete, rebar, and brick or block. Designed by Diablo as part of their revolutionary, most complete range of SDS-Max hammer drill bits, this bit delivers the fastest, coolest, and most durable performance available - purpose-built to handle the punishing conditions of high-powered rotary hammer work where standard bits fall short.

Key Features

• Up to 7X longer life versus standard 2-cutter hammer drill bits - dramatically reduces bit replacement frequency and downtime on demanding jobsites
• Dura-Carbide construction features up to 2X more carbide that withstands up to 1800 deg. Fahrenheit of intense heat versus standard bits that fail at 800 deg. Fahrenheit - keeps the cutting head intact even after repeated rebar strikes
• Impact Resistant 4-Cutter Full Carbide Head extracts smaller bites of rebar for controlled, consistent carbide wear and reduced vibration - delivers fast, precise holes with less operator fatigue
• Tri-Metal Fusion Welding features up to 3X stronger weld to keep the full carbide head intact during extreme impact such as rebar - prevents head separation and costly bit failure mid-task
• Precision Tip delivers stability and accuracy required for fast, precise holes - essential for accurate anchor setting in reinforced concrete
• Optimized flute design removes dust faster, keeping the carbide head cooler for ultimate strength and durability - extends bit life by reducing heat buildup during continuous drilling
• Wear mark indicator ensures precise hole making - helps operators achieve consistent hole depths without guesswork
• Optimized for maximum performance in corded and cordless SDS-Max rotary hammers - compatible with a wide range of professional-grade tools for flexible use on any jobsite

Why This Product

• When drilling into reinforced concrete where rebar contact is unavoidable, the 4-cutter full carbide head takes controlled small bites rather than sustaining a full rebar impact - this means the bit survives encounters that would destroy a standard 2-cutter bit
• The ability to withstand heat up to 1800 deg. Fahrenheit - more than double the 800 deg. Fahrenheit threshold where standard bits fail - means this bit maintains cutting performance even during extended, high-speed drilling sessions in tough masonry materials
• The Tri-Metal Fusion Welding process bonds the carbide head with up to 3X the strength of a conventional weld, making this bit a reliable choice for high-powered rotary hammer applications where vibration and shock loads are extreme
• With a 24 in. working length and 29 in. overall length, this bit reaches deep anchor-setting holes in reinforced concrete that shorter bits simply cannot access - making it the right tool for structural and commercial concrete applications

Specifications

• Brand: Diablo
• Manufacturer Part Number: DMAMX1310
• Diameter: 1-1/4 in.
• Length: 29 in.
• Working Length: 24 in.
• Shank: SDS Max
• Head Type: Full Carbide Head
• Number of Cutters: 4
• Compatible Tools: SDS-Max Rotary Hammer Drill
• Materials: Reinforced Concrete; Concrete; Rebar; Brick/Block
• Pack Quantity: 1
• Country of Origin: Germany

Approved Applications

• Reinforced concrete and concrete

Frequently Asked Questions

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

The Rebar Demon uses a 4-cutter full carbide head rather than the 2-cutter design found on standard bits. This 4-cutter configuration takes smaller, controlled bites of rebar, reducing vibration and delivering consistent carbide wear. Combined with Dura-Carbide material that withstands up to 1800 deg. Fahrenheit - compared to 800 deg. Fahrenheit for standard bits - the result is up to 7X longer life in reinforced concrete drilling applications.

What is Tri-Metal Fusion Welding and why does it matter?

Tri-Metal Fusion Welding is the process Diablo uses to bond the full carbide head to the bit body, producing a weld that is up to 3X stronger than conventional methods. This stronger bond keeps the carbide head intact when the bit encounters rebar and is subjected to extreme impact forces from high-powered rotary hammers, preventing head separation and premature bit failure.

Is this bit compatible with cordless rotary hammers?

Yes. The Rebar Demon SDS-Max 4-Cutter bit is optimized for maximum performance in both corded and cordless SDS-Max rotary hammers, making it a versatile choice for jobsites where access to power may vary.

What does the wear mark indicator do?

The wear mark indicator is a visual reference built into the bit that helps operators confirm they are achieving the correct, consistent hole depth during drilling. This is especially important for anchor-setting applications in reinforced concrete where precise hole depth is required for proper fastener performance.