... 125°, 130°, 135°, 140° Application: The stylus can use forHell engraving machine kinds like K303. K304, K405, K5, K50, K500. ... 21ck etc and new generation 1315, 2215, 3625Ohio engraving machine kinds like 720, 820,Features: Better cell geometries Higher ... possible life expectancy.Octahedrons and rhombic dodecahedrons natural diamond with high purity diamond for stylus tips, which make sure the stable ...