Nominal			Diameter Tolerances						Nominal
Diameter									Length
Inches	mm	Exact Conv.	Maximum		Minimum		Low Spot *		Inches	mm	Exact Conv.
		to mm	Inches	mm	Inches	mm	Inches	mm			to mm
4	100	101.6	4.07	103.4	3.88	98.6	3.84	97.5	40	1000	1016.0
									48	1200	1219.2
5.1/8	130	130.2	5.20	132.1	5.00	127.0	4.96	126.0	40	1000	1016.0
6	150	152.0	6.07	154.2	5.88	149.4	5.75	146.1	48	1200	1219.2
									60	1500	1524.0
									72	1800	1828.8
7	175	177.8	7.07	179.6	6.88	174.8	6.75	171.5	48	1200	1219.2
									60	1500	1524.0
									72	1800	1828.8
8	200	203.2	8.07	205.0	7.88	200.2	7.75	196.9	48	1200	1219.2
									60	1500	1524.0
									72	1800	1828.8
9	225	228.6	9.07	230.4	8.88	225.6	8.75	222.3	60	1500	1524.0
									72	1800	1828.8
10	250	254.0	10.07	255.8	9.88	251.0	9.75	247.7	48	1200	1219.2
									60	1500	1524.0
									72	1800	1828.8
12	300	304.8	12.07	306.6	11.88	301.8	11.75	298.5	60	1500	1524.0
									72	1800	1828.8
14	350	355.6	14.07	357.4	13.88	352.6	13.75	349.3	60	1500	1524.0
									72	1800	1828.8
16	400	406.4	16.07	408.2	15.88	403.4	15.75	400.1	72	1800	1828.8
17	425	431.8	17.12	434.9	16.88	428.8	16.75	425.5	60	1500	1524.0
									72	1800	1828.8
18	450	457.2	18.12	460.3	17.88	454.2	17.75	450.9	60	1500	1524.0
									72	1800	1828.8
									96	2400	2438.4
20	500	508.0	20.12	511.1	19.88	505.0	19.75	501.7	72	1800	1828.8
									84	2100	2133.6
									96	2400	2438.4
22	550	555.8	22.12	561.9	21.88	555.8	21.75	552.5	72	1800	1828.8
									84	2100	2133.6
24	600	609.6	24.12	612.7	23.88	606.6	23.75	603.3	72	1800	1828.8
									84	2100	2133.6
									96	2400	2438.4
* Low Spot is a flat spot in a localized area untouched by the tool when the electrode is turned as compared with the remainder of the surface.