| 摘要 |
The caliper gauge has a V-shaped gauge body. The V-shaped gauge body has stepped pairs of measuring surfaces both externally and internally of the V-shaped gage body. The pairs of measuring surfaces are a known distance apart for setting external and internal calipers. The gauge body may rest against a back plate, which prevents the caliper from being dislodged from the measuring surface. Indicia are provided for both the external measuring surfaces and internal measuring surfaces on the gauge body.
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