Built for use with copper and stainless steel, these hard-wearing 1/2 in. To 4 in. Standard copper tube size CTS jaws and press rings deliver evenly distributed force for consistent results while maintaining long-lasting durability. A galvanized, Black surface coating helps defend against the buildup of rust. The versatile press jaws and rings are manufactured to work with the DEWALT® 20V MAX* press tool (dce200—sold separately) and will work with most professional-grade press fitting brands.