It has a high and uniform hardness and wear resistance and a high elastic limit, durable and easy to use, your good assistant for work and life. [MULTI SIZE]: 7/8 inch, 3/4 inch, 5/8 inch, 1/2 inch, 3/8 inch, 1/4 inch, 6 different sizes per to meet your needs. [FUNCTION AND EASY TO INSTALL]: When the air conditioner is installed, expand the tube, make two tubes. (To be installed in manual electric drill). Perfect for installers, it doesn't matter if you are learning or have been doing it. Good performance and , full range of forging tools makes it easier to extend pipes. [PRECISION]: The flares will always have the same size and will fit perfectly; The swages a perfect depth and a fitting, that will make the brazing easier, reducing the fatigue stress over the coupling area. [GREAT PRESSING TOOLS]: Revolutionizing system for molding tubes using heat by friction way more surface of between the flare and the Valve. A full range of forging tools makes it easy to expand HVAC tubing, the forging plug will a exchange depth for a . Material:Metal colour:black Package Contents: 6 * Hexagonal Handle Tube Expander Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.