| Year | 2018 |
| Date | 07-Dec |
| Volume | 221 |
| Issue | 4,601 |
| Page | 832 |
| Category | Workshop |
| Part | 3 |
| Title | A Diversion into Rotary Broaching |
| Author | Ray Griffin |
| Notes | Concludes description of the construction of a rotary broach from a kit of parts by cutting a square hole with it. Making the broach, putting the broach to work |