MEASUREMENT CONVERSION CHART

BS Gauge	1/1000"	Duz.	MM	Inches
2	.257	34	6 ¼	1/4
4	.204		5
5	.182		4 ½
6	.162		4
7	.144		3 ¾	1/8
8	.125	16 ½	3	7/64
9	.114		2 ¾
10	.101	13	2 ½
11	.090		2 ¼	5/64
12	.080	10	2
13	.073	9	1 ¾
14	.062	8	1 ½	1/16
15	.056
16	.051	7	1 ¼
17	.045	6		3/64
18	.040	5	1
19	.036	4 ½
20	.031	4	¾	1/31
21	.028	3 ½
22	.025	3
23	.025
24	.022	2 ½	½
25	.020
26	.018	2		1/64
27	.014
28	.012
29	.011
30	.010	1	¼