AVAK ML100 DUO -2-in-1 Extended Handle Fastening Tool for 3/16" Rivet and 5/16" Blind Rivet Nut (Standards UNC) 2-in-1 Fasten up to 3/16rivets and up to 5/16-18 rivet nut/threaded inserts for all materials Extended handles for extra leverage and effortless riveting QuickSwitch: For rapid 3-steps function disassembly and 3-steps assembly Reach difficult work piece with the extended head design Use up to 3 functions including metric/standards rivet nut/threaded inserts and rivet studs with optional add-on kits