Jovanovic Plugger, Black Line Jovanovic Plugger, Black Line PLGJO/4X Hu-Friedy's innovative Black Line is designed with a matte handle and performance engineered coating to optimize performance and precision. 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.