#300 Sharpening Stone for the Handpiece PreviousNext #300 Sharpening Stone for the Handpiece SS300 0.0 star rating Write a review Mandrel Mounted Stone for the handpiece restores the cutting edge on dull instruments. Stones are made of white aluminum oxide. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.