Two-sided drilling system performs speedy drilling without cracking of lens.
Available for all current lens materials-mineral glass. CR-39 and polycarbonate as well.
The meter of hole is simply adjustable to a precision if 0.2mm with a directly readable scale.
Two-sided drilling system performs speedy drilling without cracking of lens.
Available for all current lens materials-mineral glass. CR-39 and polycarbonate as well.
The meter of hole is simply adjustable to a precision if 0.2mm with a directly readable scale.