1. This machine is a multi-functional and special-purpose equipment for perforating and grooving of rimless frame.
2. It is most applicable to CR lens and PC lens to perforate and groove.
3. Opposing taper drill bits system allow lens to be drilled from both sides, simultaneously for precision placement and avoids chipping and breaking of all lens, especially those made of glass.
4. The adjustable groove-cutting device to get accurate depth of groove cutting
