Ceramic Ball Bearings Using ceramic balls instead of stainless steel balls elevates the performance of bearings, ceramic balls are 60% lighter than stainless steel balls, and their surface finishes are almost perfectly smooth. Furthermore, the ceramic ball bearings have vibration levels 2-7 times lower when compared to conventional metal balls. Handpiece body Made of aluminum, with smooth chrome-plated treatment, with a new and exclusive design. Surface Handpiece Treatment The body of the handpieces Gnatus has high mechanical strength, obtained by applying the exclusive technology, a special chemical treatment that promotes hardening while maintaining a smooth texture. Electrochemical Treatment Treatment system of hardening the surface layer which ensures the durability of the thread.