| Year | 2017 |
| Date | 06-Jan |
| Volume | 218 |
| Issue | 4,551 |
| Page | 88 |
| Category | Workshop |
| Part | 2 |
| Title | A Sensitive Drilling Attachment |
| Author | Roger Vane |
| Notes | Employs good design to gain fine control. The yoke and operating lever, links and pins, the drilling spindles, final assembly, sourcing of components |