Indexed Grid Graticle Ne34a, 21 mm, 1 X 1 mm With 1.0 mm Pitch, Each

Details:

Useful for particle counting, particularly when reference is needed between workers. Also useful for area of specimen determinations numbered grid 1mm x 1mm. 0.1Mm pitch, marked 1-10 and a-j, surface chrome image. Size: 21 mm