Mathieu Pliers Hu-Friedy Mfg. · #678-330 Mathieu plier forged from Immunity Steel Alloy, resistant to rust and corrosion. Add to cart Product Information ManufacturerHu-Friedy Mfg. More Products More from Hu-Friedy Mfg. (3,328) More Orthodontic Specialty Instruments (653)