new Swaging Tool Copper Tube Expander Manual Copper Pipe Swage [5 in 1] About this item High Strength Alloy: The copper pipe swaging drill bit features the high-strength high-speed alloy. Compatible Bit: The copper pipe swaging drill bit is simple and easy to use, which can be directly connected to the electric drill interface. Time Saving: The copper pipe swaging drill bit is efficient and fast, which saves more time, compare with manual models, and the effect of it is obvious. Small Tip: The copper pipe swaging drill bit is suitable for pipe diameters between 3/4", 5/8", 1/2", 3/8" and 1/4"