PT.TEC.B2.06.4.060.50.X.R0 | 0.6mm PMMA/PEEK Bur for Roland* DWX* Machines (2-Flute Ball) 0.6mm 2-Flute Ball Carbide Milling Bur for PMMA/PEEK FLATCOAT® TEC Coating, Shaft Diameter of 4mm, No Ring.