AVAK SH360 TRIO - 3-in-1 :360&deg; Swivel Head Fastening Tool for 3/16" Rivet, 1/4" Blind Rivet Nut and 5/16" Rivet Stud. (Standards UNC) 360 swivel head allows for any angle operation 3-in-1 Fasten up to 3/16 in aluminum and steels rivets (5/32 for stainless), 1/4 nutserts and rivet nuts in all materials Reach difficult work piece with the extended head design QuickSwitch: For rapid 3-steps function disassembly and 3-steps assembly Use both metric/standard fasteners with mandrel expansion sets.