The backbone of any resistance soldering system is a high quality power unit. American Beauty's resistance power units are recognized industry-wide for their performance, reliability and safety. The American Beauty power unit ensures a good combination of intensity and control. It comes with tapered pin receptacles that provide a fast interchange of handpieces. - Common features include fail-safe devices to ensure ultimate user safety, flexibility to operate a variety of handpieces and our outstanding three-year warranty, guaranteeing the product to be free from manufacture defect and to work properly under normal operating conditions.