| Year | 2012 |
| Date | 07-Sep |
| Volume | 209 |
| Issue | 4,438 |
| Page | 390 |
| Category | Workshop |
| Part | |
| Title | A Hand operated tapping machine |
| Author | Mike Edwards |
| Notes | Makes a simple machine. The shaft, the mounting, using the machine, modifications to the design, advantage of using this device, Editor's cast iron version |