File:5-8 vs 5-8 003.jpg
Size of this preview: 404 × 599 pixels. Other resolutions: 162 × 240 pixels | 323 × 480 pixels | 517 × 768 pixels | 690 × 1,024 pixels | 1,380 × 2,048 pixels | 3,737 × 5,545 pixels.
Original file (3,737 × 5,545 pixels, file size: 1.61 MB, MIME type: image/jpeg)
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Summary
| Description |
English: Two wrenches, both nominal size 5/8", with a diagram superimposed to show the logic that allows them both to be nominal size 5/8" when their actual sizes are clearly different (across-flats distance vs screw diameter). The across-flats definition is the common standard today, and has been for many decades. The larger wrench in this photo is from the 1920s or earlier. Its face was polished to allow the size stamp to show well in the photograph. |
| Date | |
| Source | Own work |
| Author | Manufacturing unit 9 |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:09, 12 January 2012 | | 3,737 × 5,545 (1.61 MB) | Manufacturing unit 9 |
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