| Year | 1932 |
| Date | 25-Aug |
| Volume | 67 |
| Issue | 1,633 |
| Page | 180 |
| Category | Turning Tools |
| Part | |
| Title | Lathe Tools for Square Threads. With Notes on Cutting and Measuring |
| Author | A.T.G. |
| Notes | The "Acme" thread (profile), tools for cutting "Acme" threads, threading tool gauge |