Rothenberger 70030 Automatic Size-1 Tube Cutter, 1/4 to 2-5/8-Inch Ratchet telescopic cutter For copper, brass, aluminum, thin-walled steel, and plastic coated tubes Ratchet telescopic guide with automatic spring-driven withdrawal: Quick adjustment, fast opening Retractable internal debarring tool and spare cutter wheel in handle: Always within reach