... Tools?1.We test Diamond tools life, we konw how to better use diamond tools2.We can operate CNC Engraving ... AngleOvl(mm)E16864540E26567040E36369040 1. Applicable material : Professional engraving tools for hard materials, such as stone, granite, gravestone , ceramic tiles, glass ... : Multifunctional, like line-engraving , V-sharp small word, hard jade 3D relief ,etc. 3. Payment: Escrow is the preferred ...