SATA SC22203 3/8" Drive Hex Bit Socket 5mm

It features a chrome vanadium steel body with a chrome-plated finish for corrosion resistance and durability. The insert bits are S2 steel for maximum strength, and the tool is heat treated for long-lasting performance. Large stamped size markings help quick size identification on the job.

The 3/8" drive provides a good balance of torque capacity and compatibility with a wide range of ratchets and torque wrenches. It offers efficient torque transfer with reduced effort, making it suitable for automotive and mechanical work where stronger fasteners are common.

Use the 5mm hex bit when the bolt or screw head is a 5mm hex socket. Using the correct size minimizes slippage, reduces the risk of rounding fasteners, and helps achieve a secure, precise fit.

S2 steel inserts are known for higher strength and better wear resistance than typical insert steels. This means a snug fit over repeated use, less rounding of the fastener, and longer tool life in demanding applications.

Attach the socket to the drive of your ratchet or torque wrench, ensure the 5mm hex is fully seated into the fastener, then apply steady, even force. Avoid hammering or sudden impacts, and don’t exceed recommended torque on sensitive fasteners.

Typical uses include automotive repairs (suspension, engine components, or interior fasteners), furniture assembly, appliance maintenance, and general mechanical work where 5mm hex bolts are used.

This socket features large stamped size markings, so you can quickly identify the 5mm size even in dim or busy work environments, helping you grab the right tool fast.

If you’re considering different hex sizes in the same 3/8" drive family, you can compare variants like the 4mm or 6mm options on Fepy to match your fastener needs. For reference, you can view examples such as: 4mm variant: https://fepy.com/product/sata-sc22201-38-drive-hex-bit-socket-4mm and 6mm variant: https://fepy.com/product/sata-sc22204-38-drive-hex-bit-socket-6mm

Keep the socket clean and dry after use to prevent corrosion. Wipe off any dirt or moisture, store in a protective case or tool box, and avoid exposing the tool to harsh chemicals. Regular inspection for wear, such as rounding or chipping, will help you know when to replace it.

Yes, as long as the tool has a standard 3/8" drive square connection. The hex bit itself is 5mm and designed to fit standard 5mm fasteners; compatibility with other brands depends on their drive interface, but most common 3/8" drive tools will accept it without issue.

Look for worn or rounded hex openings, chips or cracks in the chrome plating, loose inserts, or any wobble when seated on a bolt. If you notice reduced grip, slipping, or less precise engagement, it’s time to replace it to avoid damaging fasteners.