One tool for four copper crimp rings. This revolutionary plumbing tool has built-in 1" jaws for PEX copper crimp rings. The 1" crimping jaws accept interchangeable dies for 3/8", 1/2" and 3/4" PEX copper crimp rings (included).
Spring loaded pins hold dies. Change PEX sizes quickly and easily without tools.
Crimps conforms to ASTM F-1807 Standard Specification
Easily calibrated; simple instructions are on the handle