Five piece adaptor set includes 19-32mm (ID-OD), 25-35mm, 32-42mm, 38-48mm and a 58mm (OD) power tool adaptors Comes with quick click system for connecting to the exhaust port on all major brands of hand held and stationary power tools Changing from one end fitting to the other takes a few seconds and offers a smooth 360 degree swivel connection to prevent the hose from kinking or restricting movement of the power tool Designed to fit most major brands of power tools and work shrouds including Bosch, Ryobi, Makita, Dewalt, Festool, Fein, Cobalt, Porter Cable, Hitachi, Milwaukee Electric and others Adaptor set is only compatible with 32mm (1.25") threaded crush proof hose