V-slot simple measuring tool

It is difficult to measure the diameter of the V-shaped groove on the plane circumference. In the case of high precision requirements, the commonly used measuring tools can not meet the requirements. To solve this problem, we have made the V shape as shown. Slot simple measuring tool. Use the iron plate to make two card feet (the shape of the card with the common caliper), put the steel ball on the lower end and clamp it. When using it, put the card foot on the card foot of the caliper and tighten the screw to fix the foot on the ruler. Placed in a V shape

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