Insert Install Tool & Mandrel Set (1-8) for Easy Fastener Installation - Perfect for Automotive, Plumbing, and DIY Projects

Wire Insert Installation Tool is used with fine pitch inserts as these inserts are proportionately larger in their free state than coarse pitch inserts. The fine pitch inserts need to have their diameters reduced before they are installed into the hole. This is accomplished by winding the insert through a set of threads called a prewinder located at the front of the installation tool. For Use With Wire Thread Inserts Application For Installation of Free Running and Screw Locking. Removable handle allows hex shank to adjust. Use with screw gun. Install free-running and screw-locking helical inserts.Features. Type - Mandrel. Material - Steel. Thread Type - UNC. Thread Direction - 1-8. Free Coil Diameter - Wire Inserts. Tap size - For Installation of Free Running and Screw Locking Wire Inserts