| Year | 1920 |
| Date | 30-Dec |
| Volume | 43 |
| Issue | 1,027 |
| Page | 527 |
| Category | Workshop Topics |
| Part | |
| Title | Something about Jaw Chucks - Principally Drill Chucks |
| Author | |
| Notes | Making a double taper shank, to turn the taper, building up an adapter, conclusion, a suggestion for gearing lathe chucks |