Lingual Hammerhead NiTi Pliers with Serrations Lingual Hammerhead NiTi Pliers with Serrations 678-704SER Multi-use pliers with serrations for bending NiTi up to .025" (.64 mm). For NiTi wire only. 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.