Optivisor Optical Glass Lens Plates Only Type:LP 4 With a capacity of approximately

With a capacity of approximately 50 troy oz of 24K gold

making suction optional rather than required

accurate sawing

V-Slot Width (top) 1/2" Block Length 4" Steel Rod Length 3-1/4" Mounting Method Bench vise Variant Count 1

Optivisor Optical Glass Lens Plates Only Type:LP 4 With a capacity of approximatelyDonegan Optivisor optical glass lens plates are available separately and can be switched in moments. Simply press out the black keepers with a coin or similar tool, swap the lens, and press the keepers back in. Earlier models used small nuts and bolts for lens retention. Donegan is the only head mounted magnifier available with optical glass prismatic lenses. These lenses cost more but deliver superior clarity and longevity compared to the lesser lens