General description High-quality 7Pcs Manual Copper Pipe Swaging Tool Drill Bit set, designed for efficient HVAC system installations. Made of durable ball bearing steel, this tool ensures consistent flare sizes and perfect fitting, making brazing easier and reducing fatigue stress in the coupling area. Technical specifications Material: Ball bearing steel Includes: 1 x 5 in 1 HVAC Tools Copper Pipe Expander (sizes: 3/4 inch, 5/8 inch, 1/2 inch, 3/8 inch, 1/4 inch) Includes: 6 x Tube Expanders (sizes: 7/8 inch, 3/4 inch, 5/8 inch, 1/2 inch, 3/8 inch, 1/4 inch) Measurement allowed error: +/- 1-3 cm Installation Easy to install by heating through friction. This tool fits into any drill, allowing for efficient work compared to traditional round reaming tools. Usage Widely applicable for air conditioning installations and connecting copper tubes. Designed for use with hand electric drills. Other information