Top jaws are positioned on the Profilo base jaws via feather keys and mounted from below with four screws. In addition to the top jaws available from LANG, you can also use your own top jaws. Given that all LANG vises use the same base body, the Profilo base jaws are compatible with the Makro•Grip® 5-axis vise and can be used on it as a complementary pair of jaws for finishing tasks.