Diablo Hammer Stop Bit DMAST1020 1/2 Inch SDS Plus 13/16 Inch Depth Carbide Tip (Concrete Anchor Setting Rotary Drilling Tool)

Diablo DMAST1020 1/2-Inch SDS-Plus Carbide-Tipped Hammer Stop Bit with 13/16-Inch Depth Stop

The Diablo DMAST1020 1/2-Inch SDS-Plus Carbide-Tipped Hammer Stop Bit drills precise, repeatable anchor holes into poured concrete, solid brick, and stone masonry. Engineered with an integrated stop collar, this specialized 2-cutter hammer drill bit halts forward penetration instantly at an exact 13/16-inch working depth to eliminate over-drilling during shallow drop-in anchor installations. Featuring a high-heat-resistant Diablo carbide tip welded via an advanced diffusion-hardening process, this SDS-plus accessory delivers rapid dust evacuation and prolonged service life across heavy-duty corded and cordless rotary hammers.

Best Used For:

• Shallow Concrete Anchor Setting: Boring uniform 13/16-inch deep pilot holes for drop-in anchors and mechanical fasteners without measuring or guessing.
• Overhead & Wall Fastener Installation: Ensuring consistent embedment depths on overhead concrete ceilings and vertical foundation walls.
• High-Volume Commercial Construction: Speeding up repetitive anchor setting in multi-story concrete buildings using cordless rotary hammers.

Key Performance & Safety Features

• Integrated Fixed Stop Collar: Physically halts drilling motion at exactly 13/16-inch depth to guarantee uniform anchor seating every time.
• Diablo-Made Carbide Tip: Premium tungsten carbide cutting edges resist thermal fracture and impact shock under aggressive hammer action.
• Optimized 2-Cutter Geometry: Balanced dual-cutter head design shears through concrete aggregate rapidly while maintaining true circular hole dimensions.
• Universal SDS-Plus Shank Fit: Locks securely into all standard corded and cordless SDS-plus rotary hammers for maximum impact energy transfer.
• Advanced Diffusion Hardening: High-temperature brazing process increases core durability to prevent bit failure during heavy daily contracting.

What's Included

• (1) Diablo DMAST1020 1/2" SDS-Plus Carbide-Tipped Hammer Stop Bit

Technical Specifications

Pro-Tip: Let the stop collar spin freely against the concrete face once the 13/16-inch depth is reached; this built-in safety action cleans out remaining hole dust without deepening the hole past your anchor's required specification.