| Year | 1920 |
| Date | 16-Dec |
| Volume | 43 |
| Issue | 1,025 |
| Page | 485 |
| Category | Workshop Topics |
| Part | |
| Title | Something about Jaw Chucks - Principally Drill Chucks |
| Author | |
| Notes | Modern type of "Goodell" pattern chuck, scroll drill chucks, Whiton's self-tightening lever scroll drill chuck, geared drill chucks, by Cushman & Whiton, "Little Giant" type of drill chuck, some special drill chucks |