Rotation Speed Recommended speed: 10,000‑15,000 RPM Maximum allowable speed: 20,000 RPM Shank: 2.35 mm HP shank for straight handpiece.
Shape: Disc
Grit: Super Coarse
Size: 26*2mm
Do not exceed the maximum speed to avoid disc cracking and workpiece overheating. Note: For super‑coarse grit, operate at moderate speed with light pressure to prevent heat‑induced damage to zirconia restorations. Features High‑concentration diamond abrasive embedded in flexible rubber matrix. The elastic body conforms to curved surfaces and margins of restorations to avoid excessive material removal. Super‑coarse grit designed for fast elimination of CAD‑CAM milling marks, deep grinding scratches and sintered protrusions on restorations. It serves as the first‑step coarse preparation in the polishing sequence. Color‑coded for quick grit identification in dental laboratories; dual‑color marking available for some versions. Autoclavable up to 135 °C for repeated use; replace when abrasives are worn out. Large‑surface disc design works well for occlusal surfaces, buccolingual areas and shoulder margins. Achieves glaze‑like finish via sequential polishing without a glazing furnace. Controlled cutting performance, lower chipping risk compared with diamond burs. Application Range ✅ Suitable for: Monolithic zirconia crowns & bridges: removal of milling traces and surface irregularities after sintering Lithium disilicate (e‑max), feldspathic porcelain and all‑ceramic restorations Coarse grinding for adjusted porcelain veneer Surface finishing of precious and non‑precious metal copings ❌ Not suitable for: Intra‑oral direct use on natural teeth; composite resin materials (super‑coarse grit will leave deep scratches). Operating Tip Super‑coarse is only for initial coarse grinding. Follow with Medium → Fine → Extra‑Fine → Ultra‑Fine sequentially. Do not use super‑coarse grit for final polishing.
