Item Type: Swagging Tool_x000D_ Material: Chrome Molybdenum Steel_x000D_ Colour: Black_x000D_ Hex Handle Diameter: Approx. 6.35mm / 0.3in_x000D_ Specifications: 3/4in, 5/8in, 1/2in, 3/8in, 1/4in. _x000D_ Purpose: Copper tube flaring tool. 15 PIECES SET: This flaring tool drill bit kit has 5 different sizes, which will meet your various work needs and make it simpler. 2PRACTICAL USE: When installing the air conditioner, open the copper pipe and connect the two copper pipes to each other. 3HEX SHANK: The 1/4in shank suits for universal hand and electric drill, and the hex design also guarantees firm connection. 4GOOD MATERIAL: Forged with chromium molybdenum steel, not easy to rust and wear resistant, very durable for long use. 5EASY CARRYING: Compact size together with light weight largely simplifies the carrying as well as the storage.5 xSwaggingToolDrillBit