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Wrench Size

Wrench Size

This table is the chart for publication of information of wrench sizes in inches (US) and millimeters (metric), as well as British spanner size information.

Inches	Millimeters	Spanner
0.250		1/4 AF
0.276	7mm	7mm
0.313		5/16 AF
0.315	8mm	8mm
0.344		11/32 AF; 1/8 Wwortd
0.354	9mm	9mm
0.375		3/8 AF
0.394	10mm	10mm
0.433	11mm	11mm
0.438		7/16 AF
0.445		3/16 Wwortd; 1/4
0.472	12mm	12mm
0.500		1/2 AF
0.512	13mm
0.525		1/4 Wwortd; 5/16 BSF
0.551	14mm
0.563		9/16 AF
0.591	15mm
0.600		5/16 Wwortd; 3/8 BSF
0.625		5/8 AF
0.630	16mm	16mm
0.669	17mm	17mm
0.686		11/16 AF
0.709	18mm	18mm
0.710		3/8 Wwortd; 7/16 BSF
0.748	19mm	19mm
0.750		3/4 AF
0.787	20mm	20mm
0.813		13/16 AF
0.820		7/16 Wwortd; 1/2 BSF
0.826	21mm	21mm
0.866	22mm	22mm
0.875		7/8 AF
0.905	23mm	23mm
0.920		1/2 Wwortd; 9/16 BSF
0.938		15/16 AF
0.945	24mm	24mm
0.984	25mm	25mm
1.000		1in AF
1.010		9/16 Wwortd; 5/8 BSF
1.024	26mm	26mm
1.063	27mm	1 1/16 AF; 27mm
1.100		5/16 Wwortd; 11/16 BSF
1.125		1 1/8 AF
1.181	30mm	30mm
1.200		11/16 Wwortd; 3/4 BSF
1.250		1 1/4 AF
1.260	32mm	32mm
1.300		3/4 Wwortd; 7/8 BSF
1.313		1 5/16 AF
1.390		13/16 Wwortd; 15/16 BSF
1.417	36mm	36mm
1.418		1 7/16 AF
1.480		7/8 Wwortd; 1in BSF
1.500		1 1/2 AF
1.575	40mm	15/16 AF; 40mm exactly
1.614	41mm	41mm
1.625		1 5/8 AF
1.670		1 in Wwortd; 1 1/8 BSF
1.688		1 11/16 AF
1.811	46mm	46mm
1.813		1 13/16 AF
1.860		1 1/8 Wwortd; 1 1/4 BSF
1.875		1 7/8 AF
1.969	50mm	50mm
2.000		2in AF
2.050		1 1/4 Wwortd; 1 3/8 BSF
2.165	55mm	55mm
2.362	60mm	60mm

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