The Diablo 9/16 in. x 16 in. x 18 in. SDS-Plus 2-Cutter Carbide-Tipped Hammer Drill Bit delivers one of the fastest and longest lasting solutions for drilling concrete and masonry available today. Engineered by Diablo with a proprietary Dura-Carbide formulation and a precision brazing and hardening process, this hammer drill bit is purpose-built for contractors and tradespeople who demand clean, accurate holes in concrete and brick or block applications. Optimized for use in both corded and cordless SDS-Plus rotary hammers, it combines aggressive cutting geometry with superior heat management to keep productivity high across demanding jobsite conditions.

Key Features

• Diablo Dura-Carbide construction withstands impact and high heat applications - dramatically extends bit life compared to standard hammer bits, reducing replacement frequency and downtime
• Peak Point Tip design allows for aggressive starts that produce clean, fast holes - ideal for setting common sized anchors without wandering or chipping
• Optimized brazing and hardening process extends the life of the carbide tips and increases productivity - meaning more holes per bit and lower cost per hole over time
• Optimized four-flute design removes dust faster, keeping the carbide tips cooler - delivers ultimate strength and durability even during extended heavy-use drilling sessions
• 9/16 in. diameter with an 18 in. overall length and 16 in. working length - provides deep reach capability for through-bolting and long anchor applications
• SDS-Plus shank - ensures secure, tool-free chuck engagement and efficient hammer energy transfer in any SDS-Plus rotary hammer

Why This Product

• Professionals drilling concrete for anchor installation need bits that start without walking and finish with a clean bore - the Peak Point Tip geometry addresses both requirements in a single design optimized for common anchor sizes.
• Heat buildup is a primary cause of premature carbide tip failure in hammer drill bits - the four-flute dust evacuation design keeps tips cooler during continuous use, directly translating to longer service life on the job.
• With an 18 in. overall length and 16 in. working length, this bit reaches depths required for deeper anchor applications in concrete and brick or block that shorter standard bits simply cannot achieve.
• Compatible with both corded and cordless SDS-Plus rotary hammers, this bit adapts to the tools already on the job, making it a practical choice for mixed-tool crews working in concrete and masonry environments.

Specifications

• Brand: Diablo
• Manufacturer Part Number: DMAPL2390
• Category: SDS-Plus 2-Cutter
• Diameter: 9/16 in.
• Overall Length: 18 in.
• Working Length: 16 in.
• Shank: SDS Plus
• Head Type: Carbide-Tipped
• Number of Cutters: 2
• Compatible Tools: SDS-Plus Rotary Hammer Drill
• Compatible Materials: Concrete; Brick/Block
• Pack Quantity: 1
• Country of Origin: Germany

Approved Applications

• Drilling concrete
• Drilling brick and block masonry
• Setting anchors in concrete and masonry substrates

Frequently Asked Questions

What types of rotary hammers is this bit compatible with?

This bit is designed for use with SDS-Plus rotary hammer drills and is optimized for maximum performance in both corded and cordless SDS-Plus rotary hammers.

What materials can this hammer drill bit drill through?

This bit is designed and rated for drilling concrete as well as brick and block masonry applications, making it well suited for anchor installation and through-bolt work in common construction substrates.

What is the difference between the overall length and the working length on this bit?

The overall length of this bit is 18 in., which includes the SDS-Plus shank. The working length - the portion of the bit that actively cuts into the material - is 16 in., giving users significant depth capacity for deep anchor placements.

How does the four-flute design benefit drilling performance?

The optimized four-flute design removes dust from the bore faster than fewer-flute configurations, which keeps the carbide tips cooler during use. Lower tip temperatures contribute directly to greater strength and durability across the life of the bit.