The SC-3C crimper by Jinkai is the favorite of all the J&B staff. This is the best small crimping tool on the market. It crimps accurately and the jaws remain true. It is coated steal and will rust so we recommend proper care to ensure long term use. The SC-3C is a three position crimper that crimps comfortably a Jinkai J crimp all the way to a Jinkai F crimp.