The centre of hole can vary by 0.2

The radius of hole can be vary by 0.2

The diameter of hole can vary by 0.2

The entire circle should lie between two concentric circles, which are radially 0.2 apart.

20%

10%

5%

30%

1/8

7/8

1/6

5/6

12, 16, 20

9, 5, 6

6, 10, 8

15, 25, 20

38 square centimeter

18 square centimeter

28 square centimeter

48 square centimeter