The 22mm bending and back former works with the REMS Sinus, Curvo, Akku-Curvo, and Curvo 50 benders on hard, half-hard, soft copper tubes (also thin-walled), on coated soft copper tubes, and on soft precision steel tubes EN 10305-1, EN 10305-2, EN 10305-3, carbon steel pipes EN 10305-3. It also works on stainless steel pipes of pressfitting systems EN 10312, series 2, EN 10088, EN 10217-7, and on steel pipes (threaded pipes) EN 10255 with the Curvo, Akku-Curvo, and Curvo 50.