| Year | 2020 |
| Date | 14-Aug |
| Volume | 225 |
| Issue | 4,645 |
| Page | 252 |
| Category | Workshop |
| Part | 4 |
| Title | Tempering and Gear Cutters |
| Author | Martin Gearing |
| Notes | Profiling Continuously Relieved Flycutters for Occasional Gear Cutting. Discusses tempering and gear cutting. Machining the tool holder and shim |