The Diablo 3/8" x 8" x 13" Rebar Demon SDS-Max 4-Cutter Full Carbide Head Hammer Drill Bit is engineered for professionals who demand maximum durability and precision when drilling into reinforced concrete, concrete, brick, and block. Diablo designed this SDS-Max rotary hammer bit with a full carbide head and 4-cutter geometry to outperform standard 2-cutter bits in both speed and longevity - making it a go-to solution for anchor setting and structural drilling applications where rebar encounters are unavoidable.

Key Features

• Up to 7X longer life versus standard 2-cutter hammer drill bits - significantly reduces bit replacement frequency and overall cost on demanding jobsites.
• Dura-Carbide with up to 2X more carbide - withstands up to 1800 deg. Fahrenheit of intense heat compared to standard bits that fail at 800 deg. Fahrenheit, keeping the bit functional 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, 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 breakage and maintaining bit integrity throughout the job.
• Precision Tip - delivers the stability and accuracy required for fast, precise holes, reducing wandering and material waste during anchor setting in reinforced concrete.
• Optimized flute design removes dust faster - keeps the carbide head cooler for ultimate strength and durability, extending the bit's working life under continuous use.
• Wear mark indicator - ensures precise hole depth control so installers hit accurate depths every time without guesswork.
• Optimized for maximum performance in corded and cordless SDS-Max rotary hammers - delivers consistent results whether powered by a corded or cordless tool setup on the jobsite.

Why This Product

• Professionals drilling into rebar-reinforced concrete face rapid bit failure with standard 2-cutter bits - the 4-cutter full carbide head and Dura-Carbide formulation are specifically engineered to absorb and survive rebar contact rather than break or dull prematurely.
• Heat is the primary enemy of carbide bits in high-volume drilling - the optimized flute design actively evacuates dust and debris to keep the head cooler, while the 1800 deg. Fahrenheit heat tolerance of Dura-Carbide provides a substantial buffer over standard bits that fail at 800 deg. Fahrenheit.
• The 3/8" diameter and 8" working length make this bit well-suited for anchor bolt installations and fastener penetrations in reinforced concrete walls and slabs where precise, repeatable hole depth is critical.
• The SDS-Max shank interface ensures secure chuck engagement and efficient energy transfer from high-powered rotary hammers, whether corded or cordless, reducing operator fatigue through reduced vibration from the 4-cutter head design.

Specifications

• Brand: Diablo
• Model Number: DMAMX1010
• Diameter: 3/8"
• Length: 13"
• Working Length: 8"
• Shank: SDS Max
• Head Type: Full Carbide Head
• Number of Cutters: 4
• Compatible Tools: SDS-Max Rotary Hammer Drill
• Compatible Materials: Reinforced Concrete; Concrete; Rebar; Brick/Block
• Pack Quantity: 1
• Country of Origin: Germany

Approved Applications

• Reinforced concrete and concrete drilling for anchor setting and structural fastener placement

Frequently Asked Questions

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

Standard 2-cutter hammer drill bits are not engineered to handle rebar contact and typically fail at carbide temperatures around 800 deg. Fahrenheit. The Diablo Rebar Demon features a 4-cutter full carbide head made with Dura-Carbide that withstands up to 1800 deg. Fahrenheit of intense heat, delivers up to 7X longer life, and uses Tri-Metal Fusion Welding for up to 3X stronger weld integrity during extreme impact situations like rebar strikes.

What shank type does this bit use, and what tools is it compatible with?

This bit uses an SDS-Max shank and is compatible with SDS-Max rotary hammer drills, including both corded and cordless models. The SDS-Max interface provides a secure lock and efficient power transfer from the hammer drill to the bit during demanding concrete drilling applications.

What is the working length and total length of this bit?

This bit has a total length of 13" and a working length of 8". The working length represents the usable drilling depth the bit can achieve, which is suitable for anchor setting and similar penetrations in reinforced concrete slabs and walls.

How does the optimized flute design contribute to bit performance?

The optimized flute design removes dust and debris from the hole faster during drilling. This faster debris evacuation keeps the carbide head cooler during extended use, which directly supports the ultimate strength and durability of the full carbide head over the course of the bit's working life.