OKUMA LC10, LC20. LC30, LC40 and LC50 NC lathes with OSP-5000L CNC System.Operation and Programming Manual. £250 OKUMA LC10, LC20. LC30, LC40 and LC50 Numerically Controlled Lathes with OSP-5000L CNC System. Huge Operation and Programming Manual. Manufacturers: Okuma Models: LC10 LC20 LC30 LC40 LC50 Contents: Operators Manual Other