Either AMP "red & blues" P/N 59250; or Daniels HX4 with Y501 dies. The
Daniels tools are often on eBay, and reasonably priced as pro tools go. The
AMP crimper is harder to find and more expensive. The AMP crimpers are in
my AOG bag, and the Daniels' are in the big toolbox because they can be used
on coax too.

Bob