Six Fasteners Covered with the Craftsman Universal 10mm Socket, 3/8" Drive Made with a unique contact-point design, Craftsman’s Universal 10mm Socket, 3/8-inch Drive  can work with six different types of fasteners, including 4, 6 and 12-point hardware, external Torx, spline and partially rounded hex fasteners. Universal sockets help you prepare for the unexpected, whether you’re working on an automotive repair or old appliances in your home. Furthermore, this socket ensures you can access a variety of hardware. Designed with a matte surface finish on the knurling, this socket provides a non-slip grip for superior control in all ratcheting situations. Stop spending time searching for the right size socket with the Craftsman Universal 10mm Socket, 3/8" Drive , thanks to the high-contrast size markings that make size identification quick and easy.