2.7 mm Interchangable Osteotome Concave Tip, Straight PreviousNext 2.7 mm Interchangable Osteotome Concave Tip, Straight OSTMSH27 0.0 star rating Write a review 2.7 mm Osteotome used to carry and place bone grafting material into site of the elevated sinus floor. 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.