Center, Front Curve, and Rear Curve grooving positions. Adjustable settings for groove depth and location. Can be used on glass, polycarbonate, and CR39 lenses.
Can be used with plastic or polycarbonate lens materials. Does not cut Trivex lenses. Adjustable grooving positions and depth. Center, Back, and Front lens reference points. 90-Day Warranty. Weight: 11 lbs.