| Year | 1982 |
| Date | 02-Jul |
| Volume | 149 |
| Issue | 3,684 |
| Page | 44 |
| Category | Workshop |
| Part | 2 |
| Title | A Compact Micrometer Boring Head |
| Author | G.A.Harding |
| Notes | Outer shell, gear cover, leadscrew and gear ring, finishing of the body, index ring, vernier scale, final jobs, conclusion |