Solving the swarf removal problems normally associated with turning square shaped grooves 1.5 4.5mm wide we developed our tangentially mounted three corner SumiTurn B Groove inserts and made them suitable for plunge / lateral machining for effective sidewall finishing. Available in our newly developed AC530U grade which features our ultra hard Super ZX coating we achieved high quality finished grooves, outstanding productivity and tool life improvements grooving steels, stainless steels and non ferrous metals.