| Year | 1999 |
| Date | 27-Aug |
| Volume | 183 |
| Issue | 4,101 |
| Page | 270 |
| Category | Road Steam |
| Part | |
| Title | Keyways & Splines |
| Author | Martin Wallis |
| Notes | Discusses the application and manufacture, CNC wire cutting. Keyways, internal splines, external splines, high tech, a wire erosion machine |