The Diablo 9/16" x 24" x 29" 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, concrete, brick, and block. Designed to outlast standard 2-cutter bits by up to 7X, this heavy-duty SDS-Max rotary hammer bit features a full carbide head construction and precision tip geometry that delivers fast, accurate holes even when rebar is encountered - making it the go-to choice for anchor setting and structural drilling applications where bit failure is not an option.

Key Features

• Up to 7X longer life versus standard 2-cutter hammer drill bits - dramatically reduces downtime and bit replacement costs on demanding jobsites
• Diablo Dura-Carbide features up to 2X more carbide that withstands up to 1800 deg. Fahrenheit of intense heat to combat rebar hits versus standard bits that fail at 800 deg. Fahrenheit - keeps the bit cutting hard where ordinary bits give out
• Impact Resistant 4-Cutter Full Carbide Head extracts smaller bites of rebar for controlled, consistent carbide wear and reduced vibration to deliver fast, precise holes - less fatigue for the user and cleaner results in reinforced concrete
• 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 in tough conditions
• Precision Tip delivers stability and accuracy required for fast, precise holes - ensures holes are properly positioned for anchor setting without bit walking
• Optimized flute design removes dust faster, keeping the carbide head cooler for ultimate strength and durability - faster debris evacuation extends bit life and improves drilling speed
• Wear mark indicator ensures precise hole making - takes the guesswork out of achieving consistent hole depths on every application
• Optimized for maximum performance in corded and cordless SDS-Max rotary hammers - versatile compatibility whether working from a power outlet or a jobsite battery platform

Why This Product

• Rebar no longer means a ruined bit - the 4-cutter full carbide head is purpose-built to handle direct rebar strikes by taking controlled, small bites rather than absorbing the full shock, extending bit life significantly compared to standard hammer drill bits
• Heat resistance up to 1800 deg. Fahrenheit means this bit stays effective in continuous high-output drilling where friction and hammer impact generate intense temperatures that destroy conventional bits at just 800 deg. Fahrenheit
• The 24" working length within a 29" overall length provides the deep reach needed for thick slabs and structural concrete work, while the 9/16" diameter suits common anchor bolt applications in reinforced concrete
• Made in Germany with Tri-Metal Fusion Welding and Dura-Carbide technology, this bit is built to perform in the most punishing conditions - delivering precision, durability, and speed where standard bits fall short

Specifications

• Manufacturer Part Number: DMAMX1070
• Brand: Diablo
• Category: SDS-Max 4-Cutter
• Diameter: 9/16"
• Overall Length: 29"
• Working Length: 24"
• 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 for anchor setting and structural fastening

Frequently Asked Questions

What makes the Rebar Demon different from a standard 2-cutter hammer drill bit?

The Rebar Demon uses a 4-cutter full carbide head with Diablo Dura-Carbide that includes up to 2X more carbide material than standard bits. This allows it to withstand up to 1800 deg. Fahrenheit of heat, compared to standard bits that fail at 800 deg. Fahrenheit. The result is up to 7X longer life, controlled carbide wear when rebar is struck, and reduced vibration throughout the drilling process.

What shank type is required to use this bit, and what 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 hammer platforms.

What is the working length versus the overall length of this bit?

This bit has a 29" overall length and a 24" working length. The working length represents the usable drilling depth the bit can achieve, while the overall length accounts for the shank and full body of the bit.

Can this bit be used to drill through brick and block in addition to reinforced concrete?

Yes. In addition to reinforced concrete and concrete - its primary application - this bit is rated for use in brick and block materials. The full carbide head construction and optimized flute design make it effective across a range of masonry materials encountered in structural and general construction work.