OKASTA High Quality 0-25mm/0.01mm Outside Micrometer Caliper Precision Gauge Vernier Caliper Measuring Tools Outside Micrometer Micrometer Caliper  (0-25 mm)

Outer diameter micrometer the external dimensions measuring instruments, measure the distance between the two sides of the square frame by use of helix principle. Outer diameter micrometer is mainly used for measuring a variety of external dimensions. Diameter micrometer dividing value is 0.01mm, the upper limit of measurement range is not more than 300mm, divided into a 25mm per specification. Such as 0-25mm, 25-50mm ...... and so on. Diameter micrometer form shown in the picture: (The picture is for illustration only, does not indicate the detailed structure.)