| Year | 1953 |
| Date | 19-Feb |
| Volume | 108 |
| Issue | 2,700 |
| Page | 240 |
| Category | Workshop |
| Part | |
| Title | Methods of producing screw threads |
| Author | "M.H." |
| Notes | Stepped stud, hand chaser, methods of screwcutting by single-point tool, lever feed, general arrangement of releasing tap and die holder, external and internal circular chasers, screwcutting with a tap, truncated thread form |