HVAC copper pipe ignition tool 5PC pin set, copper pipe expansion pin for air conditioner repair, includes 3/4 5/8 1/2 3/8 and 1/4

The flashing tools create flashes with ideal dimensions for a perfect fit, thanks to a larger contact area between the flashing surface and the valve/pipe fitting.
The high-temperature method preserves malleability, preventing cracks and leaks.
5-piece set with the most common HVAC pipe diameters, including 3/4", 5/8", 1/2", 3/8", and 1/4" drill bit.
For use with an electric drill and screwdriver on soft copper.
1/4-inch hex shank for quick release to improve your work efficiency.