The Diablo 9/16" x 16" x 21" 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, brick, block, and rebar. Diablo designed the Rebar Demon series to be the most durable, fastest, and coolest-running hammer drill bit solution available, making it a go-to choice for anchor setting and heavy-duty concrete boring applications requiring a 9/16" hole diameter with a 16" working length.

Key Features

• Up to 7X longer life versus standard 2-cutter hammer drill bits - dramatically reduces bit replacement frequency and lowers cost per hole on demanding jobsites.
• Dura-Carbide full carbide head with up to 2X more carbide material - withstands up to 1,800 deg. Fahrenheit of intense heat generated by rebar contact, whereas standard bits fail at 800 deg. Fahrenheit, keeping the cutting head intact in the most punishing conditions.
• Impact Resistant 4-Cutter Full Carbide Head - takes smaller, controlled bites of rebar to deliver consistent carbide wear, reduced vibration, and fast, precise holes in reinforced concrete.
• Tri-Metal Fusion Welding with up to 3X stronger weld - keeps the full carbide head securely bonded during extreme impact from rebar strikes, preventing breakage and maintaining drilling accuracy.
• Precision Tip geometry - provides stability and accuracy right from the start of each hole, ensuring fast, precise results required for reliable anchor setting in reinforced concrete.
• Optimized flute design removes dust faster - keeps the carbide head cooler during extended drilling, preserving ultimate strength and extending the working life of the bit.
• Wear mark indicator - gives the operator a clear visual reference to ensure precise hole depth every time, reducing the risk of undersized or oversized anchor holes.
• Optimized for corded and cordless SDS-Max rotary hammers - delivers maximum performance across a wide range of tool platforms without sacrificing speed or bit life.

Why This Product

• Drilling into reinforced concrete means inevitable rebar encounters - the 4-cutter full carbide head is specifically designed to survive those impacts with controlled carbide wear rather than sudden failure, giving crews confidence to drill without stopping.
• With a working length of 16" and an overall length of 21", this bit reaches deep enough for heavy structural anchor setting applications where shorter bits simply cannot reach the required embedment depth.
• The combination of Dura-Carbide heat resistance up to 1,800 deg. Fahrenheit and Tri-Metal Fusion Welding means this bit holds together under the stress of high-powered SDS-Max rotary hammers, reducing mid-project downtime from broken or failed bits.
• The optimized flute design actively clears dust from the cutting zone, which keeps the bit cooler and the hole cleaner - two factors that directly affect anchor performance and installation quality in concrete.

Specifications

• Brand: Diablo
• Manufacturer Part Number: DMAMX1060
• Category: SDS-Max 4-Cutter
• Diameter: 9/16"
• Working Length: 16"
• Length: 21"
• 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

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 made with Dura-Carbide, which includes up to 2X more carbide material than standard bits. This allows it to withstand up to 1,800 deg. Fahrenheit of heat - more than double the 800 deg. Fahrenheit threshold at which standard bits fail. The result is up to 7X longer bit life, reduced vibration, and consistently precise holes even after repeated rebar contact.

What shank type is required to use this bit, and which tools are compatible?

This bit uses an SDS-Max shank and is designed for use with SDS-Max rotary hammer drills. It is optimized for maximum performance in both corded and cordless SDS-Max rotary hammers.

What is the actual hole depth this bit can achieve?

This bit has a working length of 16", which represents the effective drilling depth available. The overall length of the bit is 21", with the SDS-Max shank accounting for the remaining portion held in the tool's chuck.

Can this bit be used for drilling brick and block in addition to reinforced concrete?

Yes. In addition to reinforced concrete and concrete, this bit is rated for use in brick and block materials. The 4-cutter full carbide head and optimized flute design handle the varying hardness and debris characteristics of these masonry materials effectively.