Features: 100% brand new and high quality. This tool is designed to install screw thread inserts quickly and efficiently. Use the thread insert tool to install thread inserts into a drilled hole or repair a stripped screw thread. The simplicity of these inserting tools make insert installation easy. It offers a quicker alternative to the simple hand installation tool. Specification: Type(Optional): ST M2*0.4, ST M2.5*0.45, ST M3*0.5, ST M4*0.7, ST M5*0.8, ST M6*1, ST M8*1.25, ST M10*1.5, ST M12*1.75, ST M16*2, ST M18*2.5 Material: Aluminum alloy Surface Finishing: zinc plating Weight: 58g~411g / 2oz~14.5oz (approx.) Package list: 1 * Installation Tool