| Year | 1957 |
| Date | 07-Mar |
| Volume | 116 |
| Issue | 2,911 |
| Page | 347 |
| Category | Workshop |
| Part | |
| Title | Making a precision drill chuck |
| Author | A.A.Sherwood |
| Notes | Design modifications, general assembly, chuck body, calculating cone angle, the nut, the jaws, finishing touches |