I hesitated with the concurrent Facom at equivalent price, but having the two brands tools, I looked for the remaining KNIPEX THE specialist since clamps are just that and they are manufactured at home in Germany . I have never been disappointed with a KNIPEX, I by cons sometimes left hungry with FACOM.
Fabulous build quality, flawless finish that exudes quality full lungs.
I work mostly on the sizes "red" and "blue", the force required to crimp in my rather weak sense. I make 1-handed without difficulty. For yellow, I have not yet tested.
I recommend you pay the price but it was well worth the money.