PD Rule, clear flexible acetate
Product details
- Transparent, made of polycarbonate
- Dimensions: 205 x 25 mm
- Measuring range: 0-160 mm (mm graduation)
- with holes for measuring thread diameters
- printed with B&S logo
- 3 Pieces
Spectacle Segheight Gauge
Product Features
- Size: 74 x 37 mm
- Weight: 3 g
- Transparent, white embossed scale
Fine Line Ruler
Fine line gauge for checking seg and centre height.
Billings Optical PD Rule with User Guide
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.