Specifics and features: This double flaring tool kit enables you to flare 7 different sizes of copper, aluminum, soft steel and brass tubing. Constructed of low carbon steel with chrome plating and black oxide finish for durability, this flaring tool kit comes stored and organized in a convenient carrying case. Includes 7 adapters. Adapter Sizes: 4.75mm, 5mm, 6mm, 8mm, 10mm, 1/4″ and 1/2″ Compatible Pipe Size: 1/2″, 6mm, 4.75mm, 5mm, 1/4″, 8mm, 10mm Compatible Pipe Material: Aluminum, Copper, Soft Steel, and Brass Tubing (to 45 degree) .