POSCA DRY MODEL TRIMMERIntroducing Posca Dental Supplys Dry Model Trimming Machine with automatic vacuum and built in automatic dust collector! High performance, fast and accurate trimming. Rigid cutting surface gives a flat, smooth finish. Dry trimming eliminates the clogs and messes! Easy change out of grinding disc no screws necessary, this unit uses a strong Velcro. Unit comes with a 50 pack of grinding discs. 2 easy Interchangeable Adjustable worktables one for flat,