The DWMT87971OSP 4 mm Hex Bit Socket is designed for fastening and removing metric hex fasteners in automotive, industrial, mechanical, and maintenance applications. Engineered for use with 3/8 in drive ratchets, extensions, and torque tools, this hex bit socket features a durable chrome vanadium steel construction with a polished chrome finish for corrosion resistance and long service life. DirectTorque™ technology helps improve fastener engagement while reducing the potential for fastener rounding, making it an excellent choice for professional and DIY users.
Key Features
4 mm metric hex bit socket configuration
Compatible with 3/8 in drive ratchets and accessories