Lmr-400
Howdy
Also in addition to prior post check Times Microwave distributors, Ham Radio Outlet, Granger or RF Parts as some that may have the right die for your Coax-Crimper, as have seen some crimpers (dies) that are-not very good & do not exactly match up the various Connectors and LMR out on the market now....lots of EL Cheapo Delux stuff out there claimiing to be LMR 400 stuff, so be advised....I would try to find a place that you can actually tryout...
Others will likely chime in with suppliers, but with the Coax maker and Crimper maker named that would be a huge help...
Thx
Bill