Simpson 1/4" x 11" 2-Cutter Head SDS-Plus Drill Bit with Carbide Tip is a professional-grade rotary hammer drill bit engineered in Germany to rigorous industry standards for Simpson Strong-Tie. Designed for demanding concrete, masonry, and anchor installation work, this carbide-tipped SDS-plus bit delivers precise hole tolerances, enhanced durability, and fast drilling performance - making it a reliable choice for contractors and tradespeople who need consistent results in tough materials.

Key Features

• SDS-Plus shank - locks securely into SDS-plus rotary hammers for tool-free bit changes and positive power transfer, reducing operator fatigue and downtime on the job
• 2-cutter head design - dual carbide cutting edges chip through concrete and masonry efficiently, accelerating drilling speed and extending overall bit life compared to single-cutter configurations
• 1/4" diameter with 9" drilling depth - sized precisely for anchor installation and fastening applications where accurate hole depth is critical to load performance
• 11" overall length - provides extra reach in tight or recessed locations where shorter bits cannot access the work surface
• Carbide-tipped construction - carbide retains sharp cutting geometry longer in abrasive materials like concrete and block, reducing replacement frequency and total cost over time
• Manufactured in Germany to proprietary Simpson Strong-Tie standards - meets precise tolerance requirements that ensure proper fit for anchor systems and structural fastening applications
• Compatible with a wide range of major SDS-plus rotohammers - fits tools from AEG, Black and Decker, Bosch, DeWalt, Hitachi, Hilti, Kango, Makita, Metabo, Milwaukee, Porter Cable, Ramset, Red Head, Ryobi, and Skil, so it integrates with equipment already on your job site

Why This Product

• Purpose-built to Simpson Strong-Tie's own specifications, this carbide SDS-plus bit ensures hole diameter and depth tolerances align precisely with Simpson anchor installation requirements - reducing the risk of improper anchor seating or reduced load capacity
• The 2-cutter carbide head balances fast material removal with long service life, so professionals drilling multiple holes per day get consistent performance without frequent bit changes
• At 11" overall length with a 9" drilling depth, this bit reaches work surfaces that shorter bits cannot access - ideal for deep embedment anchor installations or work in recessed wall cavities
• Broad compatibility across 15+ major rotary hammer brands means this single bit works with virtually any SDS-plus tool on site, eliminating the need to source brand-specific accessories

Specifications

• Brand: Simpson Strong-Tie
• Shank Type: SDS-Plus
• Head Type: 2-Cutter Head
• Head Diameter: 1/4 in.
• Drilling Depth: 9 in.
• Length: 11 in.
• Tip Material: Carbide
• Country of Origin: Germany

Available Pack Options

• MDPL02511: 1 Ea
• MDPL02511-R25: 25 Pk

Frequently Asked Questions

What type of rotary hammer is this drill bit compatible with?

This bit is designed for all current and older SDS-Plus rotohammers. Compatible brands include AEG, Black and Decker, Bosch, DeWalt, Hitachi, Hilti, Kango, Makita, Metabo, Milwaukee, Porter Cable, Ramset, Red Head, Ryobi, and Skil. If your rotary hammer uses an SDS-plus chuck, this bit will fit.

What is the actual drilling depth this bit achieves?

The drilling depth is 9 inches. The overall length of the bit is 11 inches - the additional length accounts for the SDS-plus shank engagement inside the tool chuck, so the usable drilling depth into the material is 9 inches.

Why is a carbide-tipped bit recommended for concrete and masonry anchor holes?

Carbide maintains its cutting edge much longer than standard steel in abrasive materials like concrete, block, and stone. For anchor installations that require precise hole tolerances - such as those specified by Simpson Strong-Tie - a carbide tip helps ensure the hole stays on-diameter throughout drilling, which is important for proper anchor seating and performance.

What does the 2-cutter head design mean in practical terms?

A 2-cutter head features two carbide cutting edges rather than one. This allows the bit to remove material from the hole more quickly and evenly, improving drilling speed and reducing the heat and wear on any single cutting edge. The result is a faster, more consistent hole with a longer-lasting bit compared to single-cutter alternatives.

Note: Product dimensions may differ from picture. Please see the item description above for specifications.