Q: How can I measure a crimped ring to be sure it is crimped correctly?
A: Each PEX crimping tool is provided with a GO/NO-GO gauge. For the 3/8”, 1/2”, and 3/4” tools, all of the ring sizes are on one gauge. If the ring is within the specifications (see Table) the GO gauge will fit over it and the NO-GO gauge will not. If the GO gauge does not fit over the ring (don’t measure on the bump where the crimper jaws meet), then the ring is not sufficiently crimped. This ring should be cut off with RingSnip ring cutters and replaced. If the NO-GO gauge fits over the ring, the ring is crimped too tightly. This ring should be cut off with RingSnip ring cutters, and replaced. Since incorrect crimps can deform fittings as well as rings, always use a new fitting if you have to make a new crimp.
Q: Do I have to use the tool provided by the manufacturer of the pipe and fitting to get a good crimp seal?
A: No. All PEX pipe and fittings are manufactured in accordance with the ASTM 1807 standard, and crimps on PEX rings must meet the same standard. Crimped rings conform to that standard when you use any Crimpmaker™ tool.
Q: Can the Crimpmaker™ tools be repaired?
A: Any Crimpmaker™ crimping tool can be restored to like-new condition by Mil3. See the Warranty & Repair page for instructions on returning your tool for repair.
Q: I have a tool that looks just like a Crimpmaker™, but it has no markings. Can this tool be repaired?
A: The only PEX crimping tools that can be repaired are tools that have the Mil3 Inc logo stamped into the body. Crimping tools that look like a Crimpmaker™ but aren’t stamped with the Mil3 logo, are a cheap knockoff made in China. These tools may not crimp in spec, even if repaired. For more see Why Crimpmaker.
Q: Where is the Crimpmaker™ made?
A: The Crimpmaker™ is still made in the United States, as it has been for the past 18 years.
Q: How do I know this is a reliable tool?
A: These tools have been purchased by professional plumbers through plumbing wholesalers for 18 years. Over a half-million of these have been sold in the US and Canada.
Q: I have lost an e-clip on my tool. Do I have to send it back to repair or can I get parts?
A: E-clips, springs, adjustment and pivot pins, and GO/NO-GO gauges can be bought separately. To order parts, send e-mail with your inquiry to firstname.lastname@example.org.
Q: Will my Crimpmaker™ work on stainless steel rings?
A: At this time, Crimpmaker PEX crimping tools can only be used with PEX copper rings and with PEX crimp fittings that conform to ASTM 1807.
Q: Can I use the Crimpmaker™ on polybutylene pipe and fittings?
A: The tool can be used on polybutylene wherever polybutylene pipe is allowed for potable water pipe or radiant heating installation.
Q: Where should Canadian customers buy Crimpmaker™ tools?
A: Crimpmaker™ tools are available from plumbing distributors, wholesalers and home improvement stores throughout Canada.