号数	円周mm	直径mm	号数	円周mm	直径mm
1	40.8	13	16	56.6	18
2	41.9	13.3	17	57.6	18.3
3	42.9	13.7	18	58.6	18.7
4	44	14	19	59.7	19
5	45	14.3	20	60.7	19.3
6	46.1	14.7	21	61.8	19.7
7	47.1	15	22	62.8	20
8	48.2	15.3	23	63.9	20.3
9	49.2	15.7	24	64.9	20.7
10	50.3	16	25	66	21
11	51.3	16.3	26	66.9	21.3
12	52.4	16.7	27	68	21.7
13	53.4	17	28	69.1	22
14	54.5	17.3	29	70.1	22.3
15	55.5	17.7	30	71.2	22.7