| Year | 1931 |
| Date | 30-Apr |
| Volume | 64 |
| Issue | 1,564 |
| Page | 417 |
| Category | Workshop Topics |
| Part | 1 |
| Title | Small Tools and their Uses. Some notes on their Practical Handling and Manipulation |
| Author | A.T.G. |
| Notes | Accurate work, micrometer, what lines & figures mean, holding and reading micrometer, producing square section on shaft, filing to micrometer, use of the micrometer in lathe work, measuring internal diameters, purchasing micrometer, ratchet stop, lock-nut |