Aluminum alloy construction ensures long lastingly for repeated use in demanding plumbing and refrigeration systems repairs Universally pipe repair pliers fit 6 different pipe diameters, perfect for refrigerant copper tubes, aluminum tubes and thin walled iron pipes in HVAC applications Ergonomic extended handles require 30% less force than standard pliers, providing effortless operations especially in tight spaces designed jaw effectively restores flattened / bent copper / aluminum pipes to original shape, minimizing refrigerant leaks with excellent repair results Compact size makes these pliers easily portable in tool belt pockets, ideal for on site maintenance of air conditioning units and cooling systems, Manufacturer: PXZH