Socket size tolerances

	A	B	C	D	E	G	H	J	L
1	SAE socket	metric socket	inch equiv AKA max nut size	minimum size	maximum size	Definitely also works for	Maybe also works for	Distance across nut corners	Wil work sloppily for
2	"5/16"		0.3125	0.3150625	0.320625	8mm		0.36084375
3		8	0.3149606299	0.3175354331	0.3231102362	--		0.3636850394	"5/16"
4		9	0.3543307087	0.3571023622	0.3628740157	--		0.4091456693	8mm, 5/16
5	"3/8"		0.375	0.377875	0.38375	--		0.4330125	9mm, 8mm
6		10	0.3937007874	0.3966692913	0.4026377953	--		0.4546062992	3/8, 9mm
7		11	0.4330708661	0.4362362205	0.4424015748	--	"7/16"	0.5000669291	10mm
8	"7/16"		0.4375	0.4406875	0.446875	--		0.50518125	11mm, 10mm
9		12	0.4724409449	0.4758031496	0.4821653543	--		0.5455275591	7/16, 11mm
10	"1/2"		0.5	0.5035	0.51	--		0.57735	12mm, 7/16
11		13	0.5118110236	0.5153700787	0.5219291339	--		0.590988189	1/2, 12mm
12		14	0.5511811024	0.5549370079	0.5616929134	--		0.6364488189	13mm, 1/2
13	"9/16"		0.5625	0.5663125	0.573125	--		0.64951875	14mm, 13mm, 1/2
14		15	0.5905511811	0.594503937	0.6014566929	--		0.6819094488	9/16. 14mm
15	"5/8"		0.625	0.629125	0.63625	--	16mm	0.7216875	15mm, 9/16, 14mm
16		16	0.6299212598	0.6340708661	0.6412204724	--		0.7273700787	5/8, 15mm, 9/16
17		17	0.6692913386	0.6736377953	0.680984252	--		0.7728307087	16mm, 5/8. 15mm
18		18	0.7086614173	0.7132047244	0.7207480315	--		0.8182913386	17mm, 16mm, 5/8
19		19	0.7480314961	0.7527716535	0.760511811	--		0.8637519685	3/4, 18mm, 17mm
20	"3/4"		0.75	0.75475	0.7625	19mm		0.866025	18mm, 17mm
21		20	0.7874015748	0.7923385827	0.8002755906	--		0.9092125984	19mm, 3/4, 18mm
22	"13/16"		0.8125	0.8175625	0.825625	--		0.93819375	20mm, 19mm, 3/4, 18mm
23		21	0.8267716535	0.8319055118	0.8400393701	--		0.9546732283	13/16, 20mm, 19mm, 3/4
24		22	0.8661417323	0.8714724409	0.8798031496	--	"7/8"	1.000133858	21mm, 13/16, 20mm
25	"7/8"		0.875	0.880375	0.88875	--		1.0103625	22mm, 21mm, 13/16, 20mm
26		23	0.905511811	0.9110393701	0.9195669291	--		1.045594488	7/8, 22mm, 21mm, 13/16
27	"15/16"		0.9375	0.9431875	0.951875	--	24mm	1.08253125	23mm, 7/8, 22mm, 21mm
28		24	0.9448818898	0.9506062992	0.9593307087	--		1.091055118	15/16, 23mm, 7/8, 22mm, 21mm
29		25	0.9842519685	0.9901732283	0.9990944882	--		1.136515748	24mm, 15/16, 23mm, 7/8, 22mm
30	"1"		1	1.006	1.015			1.1547	25mm, 24mm, 15/16, 23mm, 7/8
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