The 90 degree connector from Stein is Amp part number 31-335-RFX which is stripped to these lengths (get these documents from Mouser or Digikey):
a = 0.677"
b= 0.350"
c=0.156"
<--jacket--><--shield--><--dielectric--><--conductor-->
___________<--aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-->
______________________<bbbbbbbbbbbbbbbbbbbbbbb-->
__________________________________<--ccccccccc-->
The straight connectors from Stein are amp part number 31-320-RFX which are stripped to these dimensions:
a=0.630"
b=0.303"
c=0.156"
I bought three coax strippers (Stern HT322) from ebay, removing the 2 blades not needed for each of the three cuts; each stripper is for one operation only:
http://www.ebay.com/itm/Coaxial-Cab...848?pt=LH_DefaultDomain_0&hash=item336faadd50
I found the manual method with a razor blade was prone to error and not very fast, plus hard to do when scrunched up inside a baggage comparment or under the instrument panel. I wanted to be able to reliably cut the coax first time right since the coax length was a fixed value with no service loop, making for a clean installation. I found the following order and number of turns worked best:
jacket: 1 turn
center: 1 1/2 turns
shield: 1 turn
All this was discovered by spending a Saturday morning test stripping a couple of feet of coax before I got the right formula. A little more information than you requested but I figured it might help others too. Good luck!
