| Year | 1993 |
| Date | 04-Jun |
| Volume | 170 |
| Issue | 3,946 |
| Page | 676 |
| Category | Workshop |
| Part | 1 |
| Title | An Alternative Gear Cutter Head |
| Author | Dave Lammas |
| Notes | A larger version of his gear cutting attachment. Castings from Blackgates Engineering. Construction, methods of boring |