The Billings Optical Rule is a multi-task optical rule that has been jointly developed by John Billings FBDO, Eyeline Optical N.Z. Ltd and Aviva Mann Optical Group Australia. It allows for the accurate measurement of spectacle frames, PD’s, and other frame and fitting calculations required in today’s modern optical practice, laboratory and workshop environments.
Billings Rule unique features
Measurements: 150(L) x 40(W) x 4(T) mm
Product Reference: EYBILLENQUIRE NOW