3.7 mm Interchangable Osteotome Concave Tip Pusher, Angled 3.7 mm Interchangable Osteotome Concave Tip Pusher, Angled OSTMPU37A 3.7 mm Osteotome used to condense bone material under the sinus. 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.