What do inches mean on sockets, wrenches, etc.?
Which is bigger, 1/4 or 1/2?
1/4 is bigger than 1/6 and 1/2 is bigger than 1/4
1" (inch) = 25.4mm
The following table shows the size in inches and its equivalent in millimeters.
| Diameter | Diameter |
| inch | mm |
| 1/6 | 4,23 |
| 1/4 | 6,35 |
| 1/2 | 12,7 |
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