I've been using one of those tools for years, (that's the one with 3 different cutter knifes, right?), however I don't try to use all 3 cutters, partly because I use it on about 5 different types of cable, all of which take a lot of different adjustments, and the darn thing takes a lot of experimentation and adjustment to get adjusted. I think I just use 2 cutters, one that cuts the black rubber and any loose shield, leaving the white center insulator, which sometimes has a bonded metalic foil coating. I also use a second close by cutter that cuts all the way to the center conductor. This leaves me a neat result with only about 1/8" of center insulator exposed, and a bunch of center conductor exposed. Then I push the connector on, so that the inner tube slips under the black rubber, until the inside insulator just starts to push through into the little hole where the center conductor comes out. Then I crimp it, and cut off the excess center conductor. This has worked well for me. Not a pretty result, because my
crimper isn't quite sized properly for the connectors, but it works and is fast. Takes less than a minute.
I also have another cheaper
stripper, that only has one cutter, that I have only cut the black rubber and loose shield, then I just use my pocket knife to remove the inside insulator. Also takes less than a minute.