The Diablo 1 1/2" x 16" x 21" Rebar Demon SDS-Max 4-Cutter Carbide-Tipped Hammer Drill Bit is engineered for professionals who demand maximum durability, speed, and precision when drilling through reinforced concrete, standard concrete, brick, and block. Manufactured in Germany, this heavy-duty SDS-Max drill bit features a full-carbide 4-cutter head and Diablo's proprietary Dura-Carbide technology, delivering up to 7x longer life than standard 2-cutter bits. Whether you are setting anchors in rebar-laden slabs or boring large-diameter holes in block walls, this 21" overall length bit with a 16" working length gives rotary hammer operators a serious performance advantage on demanding job sites.

Key Features

• Up to 7x longer life versus standard 2-cutter hammer drill bits - dramatically reduces downtime and bit replacement costs on high-volume drilling projects in reinforced concrete.
• Dura-Carbide formula features up to 2x more carbide that withstands up to 1800 deg. Fahrenheit of intense heat - keeps the bit cutting effectively through rebar hits where standard bits fail at 800 deg. Fahrenheit.
• Impact Resistant 4-Cutter Full Carbide Head extracts smaller bites of rebar for controlled, consistent carbide wear and reduced vibration - produces fast, precise holes while protecting both the bit and the operator from jarring impact forces.
• Tri-Metal Fusion Welding features up to 3x stronger weld to keep the full carbide head intact during extreme impact such as rebar - prevents catastrophic head separation and extends service life in the most punishing drilling conditions.
• Precision Tip delivers stability and accuracy required for fast, precise holes - ensures clean, on-target entry in reinforced concrete anchor-setting applications where placement accuracy is critical.
• Optimized flute design removes dust faster, keeping the carbide head cooler for ultimate strength and durability - faster dust evacuation means less heat buildup and consistent cutting performance throughout the hole.
• Wear mark indicator ensures precise hole making - gives the operator a reliable visual reference so anchor holes are drilled to the correct depth without guesswork.
• Optimized for maximum performance in corded and cordless SDS-Max rotary hammers - compatible with a wide range of professional hammer drill platforms on the job site.

Why This Product

• Designed specifically for rebar encounters - the 4-cutter carbide head takes controlled, small bites of rebar instead of deflecting or snapping, making this the right choice for drilling through reinforced concrete slabs and foundations where unexpected rebar hits are unavoidable.
• Up to 7x longer bit life compared to standard 2-cutter bits means fewer bit changes, less lost productivity, and lower overall tooling cost on large concrete anchor-setting jobs.
• Heat resistance up to 1800 deg. Fahrenheit - more than double the threshold of standard bits - means the Dura-Carbide head keeps its edge and integrity even during sustained high-speed rotary hammer drilling sessions.
• The 1 1/2" diameter with a 16" working length and 21" overall length fills a critical need for deep, large-bore holes in thick concrete walls and slabs, giving crews the reach and diameter required for heavy-duty anchor installations.

Specifications

• Brand: Diablo
• Manufacturer Part Number: DMAMX1360
• Category: SDS-Max 4-Cutter
• Diameter: 1 1/2"
• Length: 21"
• Working Length: 16"
• Shank: SDS Max
• Head Type: Carbide-Tipped
• 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 4-cutter bit different from a standard 2-cutter hammer drill bit?

The Rebar Demon features a full-carbide 4-cutter head made with Diablo's Dura-Carbide, which includes up to 2x more carbide material than standard bits. This construction delivers up to 7x longer life, withstands heat up to 1800 deg. Fahrenheit (compared to 800 deg. Fahrenheit for standard bits), and uses Tri-Metal Fusion Welding for a bond up to 3x stronger - making it far more resilient when hitting rebar inside concrete.

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

This bit requires an SDS-Max rotary hammer drill. It is optimized for maximum performance in both corded and cordless SDS-Max rotary hammer platforms.

What materials can this Diablo hammer drill bit be used on?

This bit is designed for use in reinforced concrete, standard concrete, rebar, brick, and block - making it suitable for a wide range of masonry and foundation drilling tasks including anchor setting.

How does the flute design on the Rebar Demon help during drilling?

The optimized flute design removes dust faster from the hole during drilling. Faster dust evacuation keeps the carbide head cooler, which preserves carbide strength and durability over the course of the drilling operation - particularly important during extended use in deep holes at the 16" working length this bit provides.