These Uniscale glass measuring rulers are identical with the rulers in the chrome scale and micro-chrome scale series however without magnifier, handle and white cover strip. These valuable precision glass measuring rulers are suitable for use standalone or installation in self-made mounts and are delivered in a stable wooden case to protect them from damage. Uniscale rulers are available in lengths of 100, 200, 300, 500, 800, 1000, 1400, 1600 and 2000 millimetres. Other special lengths are available upon request. 

Specifications

•    Upper measuring scale: Increments = 0.005"
labelling (small) 0 .05 .10 .. (inches)
labelling (large) 0 1.0 2.0 ... (inches)
•    Lower measuring scale: Increments = 0.1 mm
labelling (small) 0 .1 .2 .. (mm)
labelling (large) 0 10 20 ... (mm)
•    The graduations and numbers are vapour-coated with hard chrome on the glass rods are high resolution and absolutely scratch resistant. The graduations have a thickness of 0.010 mm.
•    Increment accuracy in compliance with DIN 864:
± (0.003 mm + 3L / 1’000’000)
Example: L = 500 mm, graduation error <= 0.0045 mm
(dimensions bases on 20°C)
•    Thermal coefficient of expansion: 9 x 10-6 / °C
•    Refraction index = 1.5195
•    Material = float glass (selected)
•    Scaling not centred / centred on glass element! (multiple use)
•    Length of glass elements = nominal length in inches x 25.4 mm / inches + 49 mm
•    Width of glass element = 39 mm
•    Thickness of glass element = 6 mm
•    Available in lengths of (measuring range on double scale):