The Diablo 9/16" x 8" x 13" Rebar Demon SDS-Max 4-Cutter Full Carbide Head Hammer Drill Bit is engineered for professionals who need maximum durability and speed when drilling through reinforced concrete, standard concrete, brick, and block. Diablo designed this heavy-duty SDS-Max rotary hammer bit with a full carbide head and four cutting edges to handle direct rebar contact without premature failure - delivering controlled, consistent wear and up to 7X longer service life compared to standard 2-cutter bits. Whether you are setting anchors in rebar-dense slabs or boring through tough masonry, this 13" overall length bit with an 8" working length gives you the reach and precision needed to get the job done right.

Key Features

• Up to 7X longer life versus standard 2-cutter hammer drill bits - fewer bit changes and lower cost per hole on demanding jobsites
• Dura-Carbide with up to 2X more carbide material - withstands up to 1800 deg. Fahrenheit of intense heat from rebar contact, whereas standard bits fail at 800 deg. Fahrenheit, keeping the bit functional in the most punishing conditions
• Impact Resistant 4-Cutter Full Carbide Head - takes smaller, controlled bites of rebar to reduce vibration and deliver fast, precise holes without sacrificing carbide life
• Tri-Metal Fusion Welding with up to 3X stronger weld - keeps the full carbide head intact during extreme impact events such as direct rebar strikes, preventing breakage and bit loss mid-hole
• Precision Tip geometry - delivers the stability and accuracy required for fast, precise holes in reinforced concrete, making it ideal for anchor setting applications
• Optimized flute design removes dust faster - cooling the carbide head for greater strength and durability over extended drilling sessions
• Wear mark indicator - gives the operator a clear visual reference to ensure precise hole depth during drilling
• Compatible with corded and cordless SDS-Max rotary hammers - maximizes performance across a wide range of jobsite power tool setups

Why This Product

• Rebar contact is one of the most common causes of premature bit failure in reinforced concrete drilling - the 4-cutter full carbide head is specifically engineered to absorb rebar impacts and continue cutting rather than failing on first contact
• The ability to withstand up to 1800 deg. Fahrenheit of heat - more than double the threshold of standard bits - means significantly less downtime from overheating and bit replacement on high-volume anchor-setting or structural drilling projects
• The Tri-Metal Fusion Welding process creates a bond up to 3X stronger than conventional welding, directly addressing the risk of carbide head separation that can occur with lesser bits under high-impact SDS-Max hammer action
• At 13" overall length with an 8" working length and a 9/16" diameter, this bit covers a practical range of hole depths for anchor installation in reinforced slabs, walls, and masonry without requiring an extension

Specifications

• Brand: Diablo
• MPN: DMAMX1050
• Diameter: 9/16"
• Length: 13"
• Working Length: 8"
• 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 drilling

Frequently Asked Questions

What makes this bit different from a standard 2-cutter SDS-Max hammer drill bit?

The Diablo Rebar Demon features a 4-cutter full carbide head rather than the standard 2-cutter design. This configuration takes smaller, more controlled bites when encountering rebar, which reduces vibration and delivers up to 7X longer bit life compared to standard 2-cutter alternatives. The Dura-Carbide formulation also withstands up to 1800 deg. Fahrenheit of heat - more than twice the 800 deg. Fahrenheit threshold at which standard bits typically fail.

Can this bit be used with a cordless SDS-Max rotary hammer?

Yes. The Rebar Demon 9/16" x 8" x 13" SDS-Max bit is optimized for maximum performance in both corded and cordless SDS-Max rotary hammers, making it versatile across a range of jobsite power tools.

What does the wear mark indicator do?

The wear mark indicator is a visual reference built into the bit that helps the operator maintain precise hole depth during drilling. This is particularly useful for anchor-setting applications in reinforced concrete where consistent hole depth is critical for proper installation.

What materials can this hammer drill bit drill through?

This bit is designed to drill through reinforced concrete, standard concrete, rebar, brick, and block. The 4-cutter full carbide head and Tri-Metal Fusion Welding construction allow it to handle direct rebar contact without catastrophic bit failure, making it well suited for structural and anchor-setting work in rebar-dense substrates.