| Year | 1987 |
| Date | 02-Oct |
| Volume | 159 |
| Issue | 3,810 |
| Page | 376 |
| Category | Workshop |
| Part | |
| Title | Better Drill Grinding |
| Author | Ian Bradley |
| Notes | Modifications to the Potts Drill Grinding Jig. Clamps for V-blocks A and B, tailstock C, the tailstock stop, drill point angles |