| Year | 1981 |
| Date | 15-May |
| Volume | 147 |
| Issue | 3,657 |
| Page | 613 |
| Category | Correction |
| Part | |
| Title | 'Ajustit' Lathe Toolholder |
| Author | W.H.Balshaw |
| Notes | Operations, base, toolblock, wedges, wedgeblocks, columns, washer, dummy plug, plug, screws, using the toolholder, cross and axial drilling, drilling at known measurement from end, milling to width and slotting for motion and keyways |