1/3 Buser Modified JO1/3 and 13KL Periodontal Chisel 1/3 Buser Modified JO1/3 and 13KL Periodontal Chisel PPBUSER1/3 Modified version of JO1/3 13K/13KL for removing and recontouring bone. SKU Handle PPBUSER1/3 #10 Round PPBUSE1/36 #6 Satin Steel™ 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.