| Year | 1955 |
| Date | 07-Jul |
| Volume | 113 |
| Issue | 2,824 |
| Page | 8 |
| Category | Workshop |
| Part | |
| Title | Cutting Metric Threads |
| Author | Geo. Gentry |
| Notes | The Use of a 127-Toothed Wheel for Metric Screwcutting on an English Lathe. Ratio of wheel numbers, compound train, metric thread table, general requirements |