[CONSTRUCTION] Made of high-strength alloy steel, this tool is designed for professional use while resisting rust and wear, making it a reliable part of your toolbox. Comprehensive multifunctional kit: the set contains a well-organised storage box with 4 styling heads, 1 reamer and 2 chucks for efficient access and transport, which increases your productivity at work. Precision technology: With a chrome-plated rotary adapter and a flared cone made of robust steel, this kit offers 9 reamer sizes from 3 mm to 19 mm for tailor-made solutions to your requirements. Ergonomic design: the pipe expander designed for user comfort has a comfortable handle to reduce fatigue during prolonged use, as well as a labour-saving mechanism for easy operation. Versatile applications: This tool set is suitable for brass, copper and aluminium pipes and indispensable for repairing household appliances such as air conditioners and refrigerators.