| Year | 1988 |
| Date | 20-May |
| Volume | 160 |
| Issue | 3,825 |
| Page | 597 |
| Category | Workshop |
| Part | |
| Title | Jig Boring |
| Author | D.W.Plumb |
| Notes | Write about jig borers and inspection methods. Newall type jig borer, Swiss S.I.P. type, illustrations from Workshop Technology, Part 3 (3rd Edition) by W.A.Chapman |