Polyetheretherketone(peek) is a thermoplastic polyaromatic polymer with extraordinary qualities as for example light weighted, metal free and biocompatible. Size:98x16mm , 98x20mm , 98x25mm Other size available as per clients requirements. Excellent performance and unbeatable precision in milling * best quality: class 4 super hard stone according to din en iso 6873: 2000 * better heat tolerance and higher breaking strength during milling by full synthetic, plastic-free base material * compatible with all 3d cad / cam milling machines (with 98mm disc holder) * completely homogeneous, bubble-free discs * no chipping or chipping