| Year | 2018 |
| Date | 03-Aug |
| Volume | 221 |
| Issue | 4,592 |
| Page | 244 |
| Category | Educational |
| Part | 18 |
| Title | Lathes and More for Beginners |
| Author | Graham Sadler |
| Notes | Machines the tool holder step, which accurately and repeatably (repeatedly?) locates the removable tool holders. Machining the tool holder step, methods, detent pin flat |