Gauge No.	inch	mm	Gauge No.	inch	mm
6	.2031	5.16	21	.0344	.873
7	.1875	4.76	22	.0313	.794
8	.1719	4.37	23	.0281	.714
9	.1563	3.97	24	.0250	.635
10	.1406	3.57	25	.0219	.556
11	.1250	3.18	26	.0188	.478
12	.1094	2.78	27	.0172	.437
13	.0938	2.38	28	.0156	.396
14	.0781	1.98	29	.0141	.358
15	.0703	1.79	30	.0125	.318
16	.0625	1.59	31	.0109	.277
17	.0563	1.43	32	.0102	.259
18	.0500	1.27	33	.0094	.239
19	.0438	1.11	34	.0086	.218
20	.0375	.953	35	.0078	.198