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$251.00
Availability: 2 In Stock
Product Code: O27100

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GLASS SCALES

These Japanese made scales, are very useful for measuring or calibrating in the dissecting scope magnification range, or for other purposes when accuracy of better than 1/20mm is required for lengths of up to 1m.

These flat and well polished glass strips are marked by photo-printing over the entire length in 0.1mm units. This makes very accurate measurements over distances of up to 1m. A ruling machine places the markings absolutely precisely
Borosilicate glass is used for greater strength and minimal thermal expansion. It's co-efficient is ~3 x 10−6 / deg. C at 20 deg. C, and that calculates the thermal expansion is only 3Micrometre over a 1m length per degree Celsius.
The S-series scales come with 2 magnifiers set on sliders.
Supplied in a sturdy, padded case.

Enlargeable image shows section of long scale within its case. Magnifier slides on beveled edges with the scale is graduated to 0.1mm over the entire length.

Cat No.
Length of scale
Magnifier
Size
Weight
O2750
50mm
1 x 15x
25 x 70 x 3mm
31g
O27100
100mm
1 x 15x
25 x 140 x 3mm
39g
O27200
200mm
1 x 15x
25 x 220 x 3mm
57g
O27300
300mm
1 x 15x
25 x 330 x 3mm
77g
O27300S
300mm
2 x 10x
50 x 360 x 10mm
590g
O27500S
500mm
2 x 10x
50 x 560 x 10mm
807g
O27700S
700mm
2 x 10x
50 x 760 x 10mm
1,023g
O271000S
1000mm
2 x 10x
50 x 1060 x 10mm
1,348g
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