The Diablo Rebar Demon 3/4" x 16" x 18" SDS-Plus 4-Cutter Full Carbide Head Hammer Drill Bit is engineered for professionals who need to drill fast, precise holes through reinforced concrete without sacrificing bit life. Designed to take on rebar head-on, this hammer drill bit combines a full carbide head, Tri-Metal Fusion Welding, and an optimized flute design to deliver performance that standard 2-cutter bits simply cannot match. Whether you are setting anchors in reinforced slabs, drilling through concrete block, or working in brick, the Rebar Demon keeps going where lesser bits wear out and break down.

Key Features

• Up to 7X Longer Life vs. Standard 2-Cutter Bits - dramatically reduces bit replacement frequency and downtime on the job, keeping crews productive through high-volume drilling tasks in reinforced concrete and rebar-laden slabs.
• 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, so the cutting head maintains integrity even during rebar contact that would destroy conventional bits.
• 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 through reinforced concrete without sacrificing accuracy or user comfort.
• Tri-Metal Fusion Welding with Up to 3X Stronger Weld - keeps the full carbide head intact during extreme impact events such as rebar strikes, preventing head separation and bit failure that cause costly interruptions.
• Precision Tip - delivers the stability and accuracy required for fast, precise holes, making it ideal for anchor setting applications where hole placement cannot be compromised.
• Optimized Flute Design - removes dust faster to keep the carbide head cooler during drilling, preserving ultimate strength and extending the usable life of the bit through sustained high-heat applications.
• Wear Mark Indicator - ensures precise hole depth control during drilling, taking the guesswork out of anchor setting and other depth-critical tasks in concrete and masonry.
• Compatible with Corded and Cordless SDS-Plus Rotary Hammers - optimized for maximum performance across a wide range of tool platforms, giving professionals flexibility on any job site.

Why This Product

• Standard carbide bits fail at 800 deg. Fahrenheit - this bit is built with Dura-Carbide rated to withstand up to 1800 deg. Fahrenheit, making it the right choice for continuous drilling through rebar-reinforced concrete where heat buildup is unavoidable.
• The 4-cutter full carbide head takes smaller bites of rebar rather than trying to power through it, resulting in controlled carbide wear and reduced vibration - protecting both the bit and the operator over long drilling sessions.
• With a 16" working length in an 18" overall length, this bit provides the reach needed for deep anchor holes in thick reinforced concrete slabs, giving you usable depth without sacrificing stability or control.
• Tri-Metal Fusion Welding keeps the full carbide head bonded through the most extreme impact scenarios, making this bit a reliable tool for rebar-heavy applications where cheaper bits crack, chip, or lose their heads entirely.

Specifications

• Brand: Diablo
• Sub-Brand: Rebar Demon
• Manufacturer Part Number: DMAPL4260
• Category: SDS-Plus 4-Cutter
• Diameter: 3/4"
• Length: 18"
• Working Length: 16"
• Shank: SDS Plus
• Head Type: Full Carbide Head
• Number of Cutters: 4
• Compatible Tools: SDS-Plus Rotary Hammer Drill
• 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 fastening

Frequently Asked Questions

Can this bit handle direct rebar contact without breaking?

Yes. The Rebar Demon is specifically engineered for rebar contact. The Impact Resistant 4-Cutter Full Carbide Head takes smaller bites of rebar for controlled carbide wear, and Tri-Metal Fusion Welding provides up to 3X stronger weld strength to keep the head intact during extreme impact situations. The Dura-Carbide material withstands up to 1800 deg. Fahrenheit - far beyond the 800 deg. Fahrenheit threshold where standard bits fail.

What type of rotary hammer is required to use this bit?

This bit uses an SDS Plus shank and is optimized for use with SDS-Plus rotary hammer drills. It is compatible with both corded and cordless SDS-Plus rotary hammers for maximum performance on a variety of job sites.

What is the usable working length of this bit?

The working length of this bit is 16", with an overall length of 18". This provides significant reach for deep anchor holes in thick reinforced concrete and masonry applications. The wear mark indicator built into the bit also helps ensure precise hole depth during drilling.

How does the flute design contribute to bit performance and longevity?

The optimized flute design removes concrete dust from the hole faster during drilling. By clearing debris more efficiently, the flutes help keep the carbide head cooler throughout the drilling process. This sustained cooling effect preserves the strength of the carbide head and contributes to the bit's extended service life compared to standard hammer drill bits.