Copper Pipe Swaging Tool Bit made of chrome-molybdenum steel materials, durable and easy to use, your good assistant for work and life.Perfect for installers. full range of forging tools makes it easier to extend pipes.Preserving the ductility of copper/aluminum during die forging to avoid cracks and leakage.The flares will always have the same size and will fit perfectly.5pcs/set, with 5 different sizes(1/4 3/8 1/2 5/8 3/4) for your choice to meet your needs.Size Chart:Specifications: Applicable Pipe Diameter, Total Length, Hole Depth, Shank Length, Shank Diameter3/4": 19mm, 63mm, 25mm, 31mm, 6.35mm5/8": 16mm, 61mm, 23mm, 31mm, 6.35mm1/2": 12mm, 56mm, 20mm, 31mm, 6.35mm3/8": 9mm, 53mm, 16mm, 31mm, 6.35mm1/4": 6mm, 50mm, 13mm, 31mm, 6.35mmPackage Includes:5 Pieces Tube Expander Swaging Drill Bits. :Color might be slightly different due to the color calibration of each individual monitor.Please allow slightly measuring deviation due to manual measurement.