rec. RPM: 7.000 – 10.000 min-1 max. 20.000 min-1 1st Step I COARSE Removing and shaping 2nd Step I MEDIUM Smoothing 3rd Step I FINE Polishing 4th Step I EXTRA-FINE High gloss polishing Applications: Composite, Porcelain, Metal Characteristics: Specially for interdental polishing. Reversible, to be used in a pushing or pulling motion. Single-use item. Coated on one side with aluminum oxide.