Features: 1.Auto tin-feed system, suitable for various soldering station and iron, single operation is available. 2.Optional auto and manual ways of tin-wire feeding, designed for adjustable knob, more functions available and adjustable, such as feeding speed, volumes, interval time etc, and function of wire withdrawing to reduce waste of tin wire 3.Auto and manual two ways of controlling feed. 4. Available of pedal and hand switch. Specifications Model: BK373 Power supply: AC220V 50HZ AC110V 60HZ Power consumption: 10W Motor: Step motor Feed speed: 14/s35mm/s Volume: 0120 Interval time: 03.5s Feed Methods: /Auto/Manul Dia: 0.40.50.60.81.01.21.6 Dimension: 107×110×215 Weight: 1.5