- 25mm long scale.
- Each division equally spaced and numbered 0 through 25
- Each division between numbers 0 through 25 = 1.0mm
- Each division between numbers 20 through 23 = 0.1mm
- Each division between numbers 23 through 25 = .02mm
- All line widths = 0.005mm +/-0.0005mm
Lines: Chrome disposition
Flatness: 2 waves or better
Glass: 1" x 3" x 0.110" thick
Surface Quality: 20/10
Parallelism: 2 min.
Tolerances: +/-0.005mm
