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Half Protractor
Eyepiece Reticle with 180º Protractor, 10mm diameter subdivided into 1º divisions. Also has a 10mm horizontal scale with 0.5mm divisions.
NE25
£67.67 - £86.36
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0.013mm +/-0.003mm
Soda Lime 1.5mm thick
+/-0.007mm
+0/-0.1mm
Correct reading through glass