Simpson 1/4 in. x 4 in. Straight Shank Drill Bit is a carbide-tipped, professional-grade drilling tool engineered to deliver precise, reliable performance in demanding construction and installation applications. Manufactured in Germany to rigorous industry standards for Simpson Strong-Tie, this straight shank drill bit combines premium carbide construction with exacting tolerances - giving tradespeople a dependable tool for fast, accurate hole drilling. With a 4-inch overall length and a 2-1/8-inch drilling depth, this bit is well-suited for anchor installation, fastener preparation, and concrete or masonry boring where precision matters.

Key Features

• Carbide-tipped cutting edge - provides exceptional hardness and wear resistance, extending tool life compared to standard high-speed steel bits and reducing the need for frequent replacements during heavy use
• Straight shank design - offers broad compatibility with standard drill chucks and rotary hammers, making this bit easy to use across a wide range of professional drilling equipment without adapters
• 1/4 in. shank diameter - fits securely in common 1/4 in. and larger chucks, providing a stable grip that minimizes slippage and promotes straight, accurate drilling
• 4 in. overall length with 2-1/8 in. drilling depth - gives the installer enough reach for anchor and fastener holes while keeping the bit manageable and easy to control in tight spaces
• German manufacturing to high industry standards - means this bit is built to precise tolerance requirements, so holes meet the dimensional accuracy required for Simpson Strong-Tie anchor and fastener systems
• Proprietary features for enhanced durability and drilling speed - reduce downtime on the job site and help professionals complete more holes per shift with consistent results

Why This Product

• Engineered specifically to meet the tolerance requirements of Simpson Strong-Tie systems, this drill bit helps ensure that anchors and fasteners seat correctly - reducing installation errors and callbacks
• Carbide-tipped construction paired with German precision manufacturing means the bit holds its cutting edge longer under repeated use in concrete and masonry, giving professionals a more cost-effective solution over time
• The straight shank design eliminates the need for specialty chucks or adapters, making this bit a practical, ready-to-use choice for contractors who work with standard drilling equipment across multiple job sites
• Purpose-built for Simpson Strong-Tie applications, this bit takes the guesswork out of bit selection when preparing holes for Simpson anchor and fastener products - ensuring the right fit from the first hole

Specifications

• Brand: Simpson Strong-Tie
• Shank Type: Straight
• Shank Diameter: 1/4 in.
• Drilling Depth: 2-1/8 in.
• Length: 4 in.
• Country of Origin: Germany

Available Pack Options

• MDB02504: 1 Ea
• MDB02504-R25: 25 Pk

Frequently Asked Questions

What type of drilling applications is this bit designed for?

This carbide-tipped straight shank drill bit is designed for professional-grade drilling tasks that require precise tolerances, including hole preparation for Simpson Strong-Tie anchor and fastener systems in concrete, masonry, and similar base materials. The 2-1/8 in. drilling depth is suited for standard anchor hole depths used in typical Simpson installation scenarios.

Is this bit compatible with standard drill equipment?

Yes. The 1/4 in. straight shank design is compatible with standard drill chucks and a wide range of rotary tools, so no specialty adapters are required. It can be used with most professional drilling equipment that accepts a 1/4 in. or larger chuck.

Why is carbide-tipped construction important for this type of drilling?

Carbide is significantly harder and more wear-resistant than standard high-speed steel, which means the cutting edge stays sharp longer when boring into hard materials like concrete or masonry. This translates to fewer bit changes on the job site, more consistent hole quality, and better overall drilling efficiency over the life of the tool.

How do I know this bit will produce the correct hole size for Simpson Strong-Tie products?

This drill bit is manufactured to precise tolerance requirements specifically for use with Simpson Strong-Tie products. The 1/4 in. diameter is engineered to produce holes that meet the dimensional specifications required for proper anchor and fastener seating in compatible Simpson applications.

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