... series high quality optical/ophthalmic/medical instrument,CE Digital multi-function Lens Drilling Machine D92I Feature:The computer controls the processing systemProfessional ... milling in different angle and curveEasy and durable in useLCD screen Drills: 0.8mm, 1.0mm,1.2mm,1.4mm,1 ... calibration bolt, drill series, drill stand,belt, lens curve clock Digital multi-function Lens Drilling Machine D92I