Milwaukee's 2 1/2"-4" CTS-V Press Rings are optimized for the M18 FORCE LOGIC Press Tools. The CTS-V Ring Kit is a more efficient alternative to sweat and solder, enabling you to press connections on 2-1/2" to 4" copper and copper tube sized (CTS) stainless steel pipe. The ring jaw connects directly to M18 FORCE LOGIC Press Tools, providing you with secure joints in one cycle. The 2-1/2" - 4" CTS-V Ring Kit combined with M18 FORCE LOGIC Press Tools has the lightest in-line design giving you unrivaled access in tight spaces and around installed pipes, providing you with controlled, flameless copper connections for unmatched productivity.