Diablo DMAST1020 Hammer Drill Bit, 1/2 in Dia, Percussion, SDS Plus Shank

The Diablo DMAST1020 is a carbide-tipped hammer drill stop bit engineered for drilling in concrete and masonry. Designed for use with SDS-Plus rotary hammers—whether corded or cordless—this bit is built with a stop collar that provides a pre-determined stopping point, making it ideal for shallow anchor installations and repetitive work where depth consistency is required.

The dual-cutter, carbide-tipped design delivers fast, clean cuts in masonry materials. By pairing a unique brazing and hardening process with carbide tips, this bit extends working life compared to standard bits and maintains performance across both corded and cordless SDS-Plus rotary hammers. The built-in stop collar enables repeatable depth control for efficient, accurate hole placement on every job.

Features and Benefits

• SDS-Plus Compatibility: Works with any SDS-Plus rotary hammer, corded or battery-powered, for maximum tool flexibility.
• Built-in Stop Collar: Provides a pre-determined stopping point for shallow anchor installations and consistent depth control.
• Carbide-Tipped Design: Extends bit life and improves durability compared to standard bits.
• Dual-Cutter Configuration: Delivers fast, clean cuts in concrete and masonry materials.
• Optimized Brazing and Hardening: Unique manufacturing process enhances performance and longevity in masonry drilling applications.

Specifications

• Brand: Diablo
• Model: DMAST1020
• Size: 1/2 x 13/16-In.
• Tip Material: Carbide
• Cutter Design: 2-cutter
• Collar Type: Built-in stop collar
• Compatibility: SDS-Plus rotary hammers (corded and cordless)