With Gravitech® Patented Optical tracing and a new integrated drilling feature, the Perception 2 represents unparalelled technology and value in its class. For those looking for the perfect entry level system with drilling for your finishing lab you simply can't do better than the Perception 2. Features include: Grinding wheel for beveling all materials Gravitech® Patented Tracing Technology Integrated drilling at a fixed 10° angle Automatic polishing of CR-39, Hi-Index, Trivex, and Polycarbonate Intuitive Touch-screen icon based interface Automatic internal/external safety bevel Continuous 3D mapping Grooving at fixed 10° angle Superhydrophobic lens roughing process Bevel programs: automatic, program guided, manual and flat ALL-IN-ONE Tracing / Blocking / and Lens Edging OMA Compliant VCA Compliant CE Compliant UL Approved