| Year | 1997 |
| Date | 31-Jan |
| Volume | 178 |
| Issue | 4,034 |
| Page | 164 |
| Category | Workshop |
| Part | |
| Title | Towards Better Bores |
| Author | Ivan Spark (New Zealand) |
| Notes | Describes an accessory his has devised. A solution design considerations, construction, handle, head, split sleeve, screws, anvils, tools, box, using the tool |