The inspection tools for investigating poor machining of cutting machines are as follows:

1. Have the regular inspection items for measuring equipment (micrometers, inside micrometers, pneumatic meters) been determined?

2. Is the regular inspection and exchange of measuring equipment determined?

3. Regularly? Is comparative measurement implemented when exchanging measuring equipment irregularly?

4. Have the daily inspection items for measuring equipment been determined?

5. Are inspection tools placed differently from tools, spare parts, workpieces, etc?

6. Is it placed in a place that is prone to foreign objects such as oil, garbage, and chips? Can the control sample be used without correction?

7. Does the cutting machine tell you whether the repeatability accuracy of the measuring tool is good when comparing the sample? Can the control sample be used without correction?

8. When using the product as a sample, is there identification management to prevent it from being mixed into the product?

9. Have you used a dial gauge that needs to be adjusted?

10. When using a dial gauge, is one rotation considered?

11. Is there a system for tracking and handling non-conforming gauges?

12. Have you considered the usage time of measuring tools and implemented regular corrections?

13. Are measuring machines, specialized inspection fixtures, samples, and other inspection tools subject to acceptance inspection? Did you miss any inspection items?

14. Has the tracking capability been confirmed?