Classification and Characteristics of Mechanical Measuring Tools
Sep 05,2025
Mechanical measuring tools can be divided into three categories: universal measuring tools (such as vernier calipers and micrometers), specialized measuring tools (such as plug gauges and caliper gauges), and standard measuring tools (such as measuring blocks). The precision of the vernier caliper can reach 0.02mm, and the digital display type can reach 0.01mm, suitable for multidimensional measurements such as inner and outer diameters and depths. The micrometer (spiral micrometer) has higher accuracy and can be estimated to read up to 0.001mm. It is commonly used for detecting circular parts, but attention should be paid to the coordinated operation of the knob and fine adjustment.
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