Scale for precision measuring magnifier
With:
- 20mm ruler with zero point in the center with the first millimeter divided into 0.05mm, 1-5mm divided into 0.1mm and 5-10mm divided into 0.5mm.
- Protractor with 0-80° divided into 5° intervals, and 80-90° divided into 1°.
- Ten circles with metric diameters from 0.1 to 1mm
- Other ten circles with imperial diameters from 0.005 to 1/16 inch.
- Fixed angles of 29°, 55°, 60° and 118°.
