Ocular Micrometer OM-010 Erma Ocular Micrometer OM-010 is used to check the size of objects under a microscope. SKU: OM-010 Category: Optics Tweet Description Ocular Micrometer Erma Scale: 10 mm Least Count: 0.1mm Dimesnions: Ø 19mm x 1.5 mm Related products Erma Stage Micrometer SM-001 Read more