... °, 130°, 135°, 140° Application: The stylus can use forHell engraving machine kinds like K303. K304, K405, K5, K50, K500. ... , 21c, 21ck etc and new generation 1315, 2215, 3625Ohio engraving machine kinds like 720, 820,Features: Better cell geometries Higher ... Longer service life Continuous investment in state of the art technology ensure outstanding cell geometries and thus guarantee reproducible ...