PT.TEC.B2.10.3.180.43.X.R2 | 1mm PMMA/PEEK Bur for Sirona* MCX5* Machines (2-Flute Ball) 1mm 2-Flute Ball Carbide Milling Bur for PMMA/PEEK FLATCOAT® TEC Coating, Shaft Diameter of 3mm, Plastic Ring.