Just a warning to all those who are in the plumbing industry looking for a 1/2" pex crimper tool, be VERY careful when you bid on a new off-shore 1/2" crimper, they may be a whole lot cheaper but what is the cost of going back on a plumbing job to repair a leaking crimp!!!  It has happened to me and I regret very much paying 1/3 the cost of a north american made crimper just to find out the crimp is not up to par with a resulting water drip.  YOU do the math of the cost of water damage!!!  There are guys on ebay selling sub-standard off-shore junk that are poor knock-offs of the real thing. GO FOR THE REAL THING. Beware of the "extra bag of crimp rings" that go with the crimper, REMEMBER, YOU GET WHAT YOU PAY FOR.  Pay cheap, you get cheap.  Contact me if you have any questions.   Ron