That was a quick search Paul. But I can attest they are great and long lasting. But as I mentioned make sure you are buying the German version marked CK not he Chinese OK brand. I used that pair for 9.5 years 5 days a week and they are like new. Plus all the BH kits. The only complaint is that it says 18 awg but it cant handle pvc as it is to thick but 18 awg thin insulation is fine.
Another classic stripper is the Miller 100 or the 101s in which I grind the spring rivet's off for the spring and adjust the stop to allow full lade Closure and after 8 to 10k strips you get the feel for it, no nicks.