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Dealer in Fine German Made Hand Tools Since 1997 Carthage, Tennessee USA ☎ (615)-735-3388 |
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You can use the size table on this page to
find the size of the Whitworth tool you need.
Whitworth tools can be difficult to identify. For
example a 1/4W wrench is the same size as a 5/16BS
(British Standard) wrench, and it is .525 inches
across the flats, or 13.34mm. As you can see,
there is no inch or metric wrench of this size.
Only a Whitworth size wrench will fit properly!
Please measure for your application before
ordering Whitworth tools. Samstag Sales is a dealer of German brand hand tools. In the past the Germans made a lot of British size tools, but they are now starting to phase them out. The Whitworth standard expired a long time ago, and the demand for new Whitworth hand tools is declining. If you need British Whitworth hand tools it is best to buy them now! Be sure to also see our selection of German hand tool brands on our Home Page. As the tools become no longer available, we will search the countryside for used Whitworth hand tools. Please look for these on our Whitworth Tools Page. |
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To buy Whitworth Tools see our Whitworth Tool Web Page. | ||
To Measure, See the Whitworth Size
Chart |
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NOTE: You
will find some tools marked with both the
Whitworth Size and the British Standard Size. It
is the same tool! We always use the Whitworth size
when quoting a price on these tools.
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For help with measuring the Whitworth thread sizes we recommend the Stahlwille 12665/52 Thread Pitch Gauge. See it on our Stahlwille Web Page. | |
To buy Whitworth Tools see our Whitworth Tool Web Page. |
British Whitworth Size Chart | |||
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Standard |
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8 BA | N/A | 0.152 | 3.86 |
7 BA | N/A | 0.172 | 4.37 |
6 BA | N/A | 0.193 | 4.90 |
5 BA | N/A | 0.220 | 5.59 |
4 BA | N/A | 0.248 | 6.30 |
1/16 W | N/A | 0.256 | 6.90 |
3 BA | N/A | 0.282 | 7.16 |
3/32 W | N/A | 0.297 | 7.54 |
2 BA | N/A | 0.324 | 8.23 |
1/8 W | (3/16) | 0.340 | 8.64 |
1 BA | N/A | 0.365 | 9.27 |
0 BA | (7/32) | 0.413 | 10.49 |
3/16 W | 1/4 | 0.445 | 11.30 |
1/4 W | 5/16 | 0.525 | 13.34 |
5/16 W | 3/8 | 0.600 | 15.24 |
3/8 W | 7/16 | 0.710 | 18.03 |
7/16 W | 1/2 | 0.820 | 20.83 |
1/2 W | 9/16 | 0.920 | 23.37 |
9/16 W | 5/8 | 1.010 | 25.65 |
5/8 W | (11/16) | 1.100 | 27.94 |
11/16 W | 3/4 | 1.200 | 30.48 |
3/4 W | 7/8 | 1.300 | 33.02 |
13/16 W | (15/16) | 1.390 | 35.31 |
7/8 W | 1. | 1.480 | 37.59 |
1. W | 1.1/8 | 1.670 | 42.42 |
1.1/8 W | 1.1/4 | 1.860 | 47.24 |
1.1/4 W | 1.3/8 | 2.050 | 52.07 |
1.3/8 W | 1.1/2 | 2.220 | 56.39 |
1.1/2 W | 1.5/8 | 2.410 | 61.21 |
1.5/8 W | 1.3/4 | 2.580 | 65.35 |
1.3/4 W | 2. | 2.760 | 70.10 |
(1.7/8 W) | N/A | N/A | 76.70 |
N/A | 2.1/4 | 3.150 | 80.01 |
2. W | N/A | N/A | N/A |
N/A | 2.1/2 | 3.550 | 90.17 |
N/A | 2.3/4 | 3.890 | 98.81 |
N/A | 3. | 4.180 | 106.17 |
N/A | 3.1/4 | 4.530 | 115.06 |
N/A | 3.1/2 | 4.850 | 123.19 |
N/A | 3.3/4 | 5.180 | 131.57 |
N/A | 4. | 5.550 | 140.97 |
N/A | 4.1/2 | 6.380 | 162.05 |
Whitworth Tool
History =================== The Whitworth Standard was created by an Englishman named Joseph Whitworth in 1841. He also Invented the "Whitworth Sharpshooters" rifle that saw use by the Confederates in the American Civil War. You can read some history about Sir Joseph Whitworth and his many inventions on Wikipedia. To buy Whitworth Tools see our Whitworth Tool Web Page. |
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If you are looking
for wentworth tool size conversion, or wentworth tools,
you must have spelled it wrong. The correct spelling is
Whitworth. To Measure, See the Whitworth Size Chart To buy Whitworth Tools see our Whitworth Tool Web Page. |
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