Model 8 * Kit containing 3/8-Inch, 1/2-Inch, 3/4-Inch and 1-Inch heads * Free-floating and self-centering mechanism * Designed to expand tubing for fast, accurate joints in soft copper, aluminum and soft steel tube without using fittings. * Ridgid covers its products with a lifetime warranty against defects in material or workmanship for the life of the tool