Product Description: dental supplies, diamond dental supplies, dental surgical suppliesMost modern galvanisation process, optimal working results,up to four different grain sizesguarantees an extremely homogenous,safe and lasting diamond coating of the instrumentswork great on PFM, chrome & ceramic materials,ideal for shaping and gross reductionExcellent abrasive capacity & life. Long service life and high cutting capacity when preparing and separating porcelain, facing composites and model materials