General description This Teng 1/2 inch drive Stud Extractor is designed for inserting and extracting stud bolts, including headless bolts. It features a reliable performance for extracting or inserting fasteners with different diameters, making it ideal for various DIY and home improvement projects. Technical specifications Drive: ½ in. Range: 5.5 to 19mm (7/32 - 3/4 in) Compatible with screws and bolts ranging from 6mm to 19mm in diameter Features a hinged, eccentric wedge wheel with internal ribbing for secure grip and operation Compatibility and accessories Designed to work with 1/2" drive tools Suitable for use with various sockets and extension bars for versatile applications Installation Attach the stud extractor to a compatible 1/2" drive ratchet or wrench Ensure the tool is securely connected before use Usage Use the tool to extract or insert bolts by fitting it onto the fastener and turning as needed Apply appropriate force to avoid damaging the fastener or tool Other