WRENCH CLEARENCES

Table 19: Wrench Clearances for Open End Engineers Wrench 15 and Socket Wrench (Regular Length)
From SAE Aeronautical Drafting Manual

Wrench Opening	Open End Engineers Wrench 15	Socket (Regular Length)	Wrench Opening
A Min.	B Max.	C Min.	D Min.	E Min.	F Max.	G Ref.	H Max.	J Min.	K Min.	L Ref.	Q = .250	Q = .375	Q = .500	Q = .750
M Max.	N Max.	P Min.	M Max.	N Max.	P Min.	M Max.	N Max.	P Min.	M Max.	N Max.	P Min.
0.156	0.220	0.250	0.390	0.160	0.250	0.200	0.030	0.094	25
0.188	0.250	0.280	0.430	0.190	0.270	0.230	0.030	0.172	40	0.370	0.030	1.000	0.510	125				0.188
0.250	0.280	0.340	0.530	0.270	0.310	0.310	0.030	0.172	60	0.470	0.030	1.000	0.510	200	1.250	0.690	250	0.250
0.312	0.380	0.470	0.660	0.280	0.390	0.390	0.050	0.203	125	0.550	0.030	1.000	0.510	300	1.250	0.690	400	0.312
0.344	0.420	0.500	0.750	0.340	0.450	0.450	0.050	0.203	175	0.580	0.030	1.000	0.519	450	1.250	0.690	675	0.344
0.375	0.420	0.500	0.780	0.360	0.450	0.520	0.050

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