Lingual Torquing Key with Picker Lingual Torquing Key with Picker 678-708 Uniquely designed for lingual treatment, used to direct and torque .018" (.45mm) archwire. Dental Unit ManufacturerHuFriedyGroup Where to Buy x Category Dealer Partners Sales Representative Strategic Markets Schools Representative Accutron™ Equipment Sales Zip Code Find Representative Reset Select a category, input a zip code and click on Find Representative, or explore the complete list here.