| Year | 1996 |
| Date | 16-Aug |
| Volume | 177 |
| Issue | 4,023 |
| Page | 194 |
| Category | Workshop |
| Part | 1 |
| Title | Four Facet Drill Sharpening: Extending the Range |
| Author | D.A.G.Brown |
| Notes | Describes adaptations and improvements. Holding fixture, die block details, collets, supplier |