Yeah Ive got about 10 different sizes of those at work. They are bad-ass.. do a perfect job every time. Had no idea they were so expensive though. The ones we have are made by packard electrical. They are mostly used for putting pins onto wires for insertion into connectors. They work extremely well.. you can't get a more professional crimp. I'd be wary of the cheap ones.. Because these use a spring/cantilever machanism inside them to put exactly the right amount of force on the crimp and create perfectly uniform results every time. And they are made very well, to last for MANY YEARS of constant use.
You get what you pay for..