Had initial issues crimping #80 (1.0mm) crimps, as another stated would not crimp down enough. Turned out the sliding lock prevents a full crimp. Trick is to let the lock slide into locked position and then it fully crimps and holds even smaller 50-60lb .8mm crimps (smallest I've tried)
My first pair were horrible so I returned them under the warranty. The new pair are really good and work perfectly. Must have been a bug with the first set but it was corrected! Love them... Really beefy!
Probably the worst crimper on the market. The heft and feel of the crimpers are nice. The packaging is nice as well. When it comes down to actually crimping something they fail. The pliers DO NOT close all the way with a sleeve in the jaws which does not allow you to get a proper crimp.
Depend on a Jinkai crimper or a Momoi. I returned this after I made sure with some locals that it was a faulty crimper and bought the Momoi CN110. It crimps with ease!
I bought this company's pliers a few months back because they look much stronger than the other brands ( for price ) opened package and all screws were loose. Tightened, and upon first use they literally fell to pieces. I gave the manufacturer another chance and purchased their crimpers. Opened package and everything in working order. Out on boat all day getting ready to finally set up shark rig, went to do first crimp and halfway through squeeze, the head split in two.