Simpson 5/16 in. x 6 in. Straight Shank Drill Bit from Simpson Strong-Tie is a premium-quality, professional-grade carbide-tipped drill bit engineered for precision drilling applications. Manufactured in Germany to the highest industry standards, this hardened steel bit is built for contractors and professionals who demand reliable performance and consistent results on the job. Whether you are drilling through masonry, concrete, or other demanding materials, this straight shank bit is designed to deliver accurate holes at precise tolerances while maintaining durability over repeated use.

Key Features

• Carbide-tipped cutting edge - delivers long-lasting sharpness and wear resistance, so the bit maintains drilling speed and accuracy through tough materials
• Hardened steel construction - provides the structural strength needed to withstand the stresses of demanding drilling work without bending or breaking
• 5/16 in. diameter - matches common fastener and anchor hole requirements, making it a precise fit for professional installation applications
• 6 in. overall length - gives you the reach needed to drill into deeper surfaces while keeping the bit stable and manageable during use
• 4 in. drilling depth - allows you to achieve a full, clean bore to the required embedment depth without repositioning or guesswork
• Straight shank design - fits standard drill chucks for easy, tool-free bit changes and broad compatibility with common drilling equipment
• Proprietary durability and speed features - incorporated design enhancements reduce drilling time and operator fatigue, improving overall job-site efficiency
• Manufactured to precise tolerance requirements - ensures consistent hole diameter every time, which is critical for anchoring systems and structural fastener performance

Why This Product

• Built to precise tolerance requirements, this bit produces holes that meet the dimensional demands of professional anchor and fastener installations - reducing rework and ensuring code-compliant results
• Carbide-tipped hardened steel construction means the bit stays sharp longer than standard bits, making it a cost-effective choice for high-frequency drilling tasks
• The straight shank format works with virtually any standard drill chuck, so there is no need for special equipment or adapters - just chuck it and drill
• Engineered and manufactured in Germany under Simpson Strong-Tie's strict quality standards, this bit is designed specifically to perform alongside Simpson's structural connectors and anchoring systems

Specifications

• Brand: Simpson Strong-Tie
• Shank Type: Straight Shank
• Diameter: 5/16 in.
• Drilling Depth: 4 in.
• Length: 6 in.
• Material: Hardened Steel
• Country of Origin: Germany

Available Pack Options

• MDB03106: 1 Ea
• MDB03106-R25: 25 Pk

Frequently Asked Questions

What type of drill is compatible with this drill bit?

This bit features a straight shank, which is compatible with standard drill chucks found on most rotary drills. No special adapter or proprietary chuck is required, making it easy to use with common professional and contractor-grade drilling equipment.

What is the maximum drilling depth this bit can achieve?

This drill bit is designed for a drilling depth of 4 in. The 6 in. overall length provides the reach needed to achieve the full 4 in. bore while keeping enough shank in the chuck for a secure, stable hold during drilling.

What makes the cutting edge on this bit durable enough for demanding applications?

The bit features a carbide-tipped cutting edge, which is significantly harder and more wear-resistant than standard high-speed steel tips. Combined with the hardened steel body, this construction helps maintain sharpness and drilling speed through tough materials over extended use.

Is this drill bit designed to work with Simpson Strong-Tie anchoring systems?

Yes. This drill bit is part of Simpson Strong-Tie's line of premium drilling accessories, and it is manufactured to meet the precise tolerance requirements needed for use with Simpson anchoring and structural fastening systems. The 5/16 in. diameter is a common specification for many anchor hole requirements.

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