| Year | 1977 |
| Date | 16-Dec |
| Volume | 143 |
| Issue | 3,575 |
| Page | 1,422 |
| Category | Lathe |
| Part | 4 |
| Title | Cross-Slide Micrometer Collars |
| Author | George Thomas |
| Notes | Ball and roller bearings, graduating, modified Radford dividing head, a simpler method, Radford graduating tool |