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Card rulesThe most commonly used form is shown in Figure 1. If the drawing size of the axis is ￠ 80
The maximum limit size of the caliper is 80-0.04=79.96mm, and the minimum limit size is 80-0.12=79.88mm. The 79.96mm end of the caliper is called the through end; The 79.88mm end of the caliper is called the stop end.
When measuring, if the through end of the caliper can pass through the workpiece but the end cannot, it indicates that the workpiece is qualified; If the through end of the caliper can pass through the workpiece and the stop end can also pass through the workpiece, it indicates that the workpiece size is too small and has become a waste product; If neither the through end nor the stop end can pass through the workpiece, it indicates that the workpiece size is too large, unqualified, and must be reworked.
The main standards manufactured and produced by our company are: 1. M metric thread gauge 2 UNAmerican standard thread gauge3. Tr trapezoidal thread gauge 4, BS British standard thread gauge 5, SM sewing machine thread gauge 6, G straight pipe thread gauge 7, NPSM American standard thread gauge 8, RB new standard taper pipe thread gauge 9, PT Japanese standard taper pipe thread gauge 10, RP German standard taper pipe thread gauge 11, double headed smooth plug gauge 12Smooth ring gauge13. MT Morse taper gauge 14, 7:24 taper gauge 15, pin plug (needle) gauge and other various standards are complete! Welcome new and old customers to place orders!
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