[McMurdo]

I was going to recommend the Ideal T-stripper but you just linked to it!

Worth mentioning there are metric and imperial sets, I have the ones with red handles. Ultra sharp (don't get your skin in there) and absolutely no chance of nicking the copper if you have repetitive jobs on the same sized wire, eg terminating a large multi-core.

I do have a pair of those auto-gauging nick-and-strip things that close & draw with one squeeze, but I find them best left for household electrics.