#5 DE Burnisher for Minimally Invasive Procedures #5 DE Burnisher for Minimally Invasive Procedures BBKOT5 The Columbia design is ideal when trying to work on irregularly shaped tooth surfaces or bone regions. 0.6mm. 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.