The Diablo Rebar Demon 5/8 in. x 24 in. x 29 in. SDS-Max 4-Cutter Full Carbide Head Hammer Drill Bit is engineered for professionals who demand speed, durability, and precision when drilling through reinforced concrete, concrete, brick, and block. Diablo's Rebar Demon series represents a revolutionary approach to SDS-Max hammer drill bit design, combining a full carbide head, advanced Tri-Metal Fusion Welding, and an optimized flute geometry to deliver a hammer drill bit that stays cooler, lasts longer, and performs faster than conventional 2-cutter bits - even when striking rebar.

Key Features

• Up to 7X longer life versus standard 2-cutter hammer drill bits - dramatically reduces bit replacement frequency and downtime on demanding concrete drilling jobs
• Dura-Carbide with up to 2X more carbide material - withstands up to 1800 deg. Fahrenheit of intense heat compared to standard bits that fail at 800 deg. Fahrenheit, keeping the bit intact through rebar hits and prolonged use
• Impact Resistant 4-Cutter Full Carbide Head - extracts smaller bites of rebar for controlled, consistent carbide wear and reduced vibration, resulting in fast, precise holes even in heavily reinforced concrete
• Tri-Metal Fusion Welding with up to 3X stronger weld - keeps the full carbide head intact during extreme impact situations such as rebar contact, preventing catastrophic head separation
• Precision Tip design - delivers the stability and accuracy required for fast, precise holes in reinforced concrete, which is critical for anchor setting applications
• Optimized flute design - removes dust faster, keeping the carbide head cooler for ultimate strength and durability over extended drilling sessions
• Wear mark indicator - ensures precise hole depth making so installers hit target depths consistently without measuring after each hole
• Optimized for corded and cordless SDS-Max rotary hammer drills - delivers maximum performance across a wide range of professional-grade power tools

Why This Product

• Drilling through reinforced concrete with a standard bit risks rapid wear or failure the moment the bit contacts rebar - the Rebar Demon's 4-cutter full carbide head takes controlled, smaller bites of rebar rather than grinding against it, giving the bit up to 7X longer service life than conventional 2-cutter alternatives
• Heat buildup is the primary cause of premature bit failure in high-production concrete drilling - Dura-Carbide withstands up to 1800 deg. Fahrenheit while standard bits fail at 800 deg. Fahrenheit, meaning this bit keeps cutting where others stop
• The 5/8 in. diameter and 24 in. working length in a 29 in. overall profile makes this bit well suited for deep anchor-setting applications in reinforced concrete walls, slabs, and foundations where shorter bits simply cannot reach
• Tri-Metal Fusion Welding produces a bond up to 3X stronger than standard welding methods, so the full carbide head stays bonded under the extreme stress of high-powered SDS-Max rotary hammer drills - reducing the safety risk and cost of mid-job bit failure

Specifications

• Brand: Diablo
• Manufacturer Part Number: DMAMX1110
• Category: SDS-Max 4-Cutter
• Diameter: 5/8 in.
• Overall Length: 29 in.
• Working Length: 24 in.
• 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 drilling for anchor setting and fastener placement

Frequently Asked Questions

What makes the Rebar Demon different from a standard hammer drill bit when hitting rebar?

Standard 2-cutter bits are not designed to handle rebar contact and typically fail rapidly when they strike reinforcing steel. The Rebar Demon's 4-cutter full carbide head takes smaller, more controlled bites of rebar rather than absorbing the full impact in a single point, which delivers controlled carbide wear, reduced vibration, and up to 7X longer life compared to standard 2-cutter hammer drill bits.

What shank type does this bit use, and what tools is it compatible with?

This bit features an SDS-Max shank, which 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.

How does Tri-Metal Fusion Welding improve bit performance?

Tri-Metal Fusion Welding creates a bond that is up to 3X stronger than the welds used in standard hammer drill bits. This stronger connection between the full carbide head and the bit body resists the intense heat and impact stress generated during reinforced concrete drilling, keeping the head intact in extreme impact situations such as rebar contact.

What are the key dimensions of this bit and what type of work is the 24 in. working length suited for?

This bit has a 5/8 in. diameter, a 29 in. overall length, and a 24 in. working length. The extended working length is well suited for deep-hole drilling applications such as setting anchors in thick reinforced concrete walls, slabs, and structural foundations where shorter bits cannot reach the required depth.