The Diablo 1/2" x 1-11/16" SDS-Plus 2-Cutter Carbide-Tipped Stop Bit is a professional-grade hammer drill bit engineered for fast, accurate, and repeatable holes in concrete and masonry. Built by Diablo with a proprietary carbide formulation and a precision stop collar, this bit is purpose-built for shallow anchor installations where consistent hole depth is critical. Whether you are working with a corded or cordless SDS-Plus rotary hammer, this bit delivers the speed and durability that demanding jobsite conditions require.

Key Features

• Diablo carbide construction withstands impact and high heat - dramatically extends working life compared to standard hammer bits, reducing downtime and bit replacement costs on concrete and masonry jobs
• Stop collar for pre-determined hole depth - eliminates guesswork during shallow anchor installations, ensuring every hole is drilled to the exact required depth without measuring or marking each time
• Optimized brazing and hardening process on carbide tips - increases tip integrity under repeated hammer impacts, maintaining cutting performance longer and boosting overall productivity
• 2-cutter carbide-tipped design - provides aggressive material removal in concrete and brick/block, allowing users to drill fast, accurate holes with less effort
• Compatible with corded and cordless SDS-Plus rotary hammers - delivers maximum performance across a wide range of tool setups, giving contractors flexibility on the jobsite

Why This Product

• The built-in stop collar makes this bit the right choice for anchor-setting tasks where hole depth must be consistent across multiple installations - no extra tools or manual depth gauges needed
• Diablo's unique carbide brazing and hardening process means the cutting tips hold up under the high heat and repeated impact of SDS-Plus rotary hammer use, giving you more holes per bit compared to standard options
• With a 1/2" diameter and a working length of 1-11/16", this bit is specifically sized for shallow anchor applications in concrete and brick/block, keeping your work precise and your anchors properly seated
• SDS-Plus shank compatibility ensures a secure, tool-free bit change and optimal energy transfer from your rotary hammer to the cutting surface, improving efficiency on every hole

Specifications

• Brand: Diablo
• Manufacturer Part Number: DMAST1030
• Category: SDS-Plus Stop Bits
• Diameter: 1/2"
• Length: 4-3/4"
• Working Length: 1-11/16"
• Shank: SDS Plus
• Number of Cutters: 2
• Compatible Tools: SDS-Plus Rotary Hammer Drill
• Compatible Materials: Concrete; Brick/Block
• Pack Quantity: 1

Approved Applications

• Anchor setting

Frequently Asked Questions

What is the purpose of the stop collar on this bit?

The stop collar establishes a pre-determined stopping point so you can drill to a consistent, accurate depth for shallow anchor installations without measuring each hole individually. This makes repetitive anchor-setting tasks faster and more reliable in concrete and masonry.

What materials can this SDS-Plus stop bit drill through?

This bit is designed to drill through concrete and brick/block. The 2-cutter carbide-tipped design is optimized for hard masonry materials where standard bits wear out quickly.

Is this bit compatible with cordless SDS-Plus rotary hammers?

Yes. This bit is optimized for maximum performance in both corded and cordless SDS-Plus rotary hammer drills, making it a versatile option for jobsites where corded power may not always be available.

What makes Diablo's carbide tips last longer than standard hammer bits?

Diablo uses a unique brazing and hardening process during manufacturing that strengthens the carbide tips against the high heat and repeated impact forces generated by rotary hammer drilling. This results in extended bit life and improved productivity compared to standard hammer drill bits.