| Year | 1927 |
| Date | 12-May |
| Volume | 56 |
| Issue | 1,357 |
| Page | 449 |
| Category | Workshop Topics |
| Part | |
| Title | Cutting Worm-Wheel with a Tap |
| Author | |
| Notes | Diagram showing setting up for gashing a wheel by a tap, showing the effect of ordinary hobbing by taps in relation to the thickness |