| Year | 1937 |
| Date | 12-Aug |
| Volume | 77 |
| Issue | 1,892 |
| Page | 159 |
| Category | Workshop |
| Part | |
| Title | How to Avoid Breaking Small Taps |
| Author | "Ned" |
| Notes | Torque breakages, lubrication, backing out, adjustable tap wrench, second and plug taps, "Armstrong" type tap wrench, tapping size holes, leverage, tee-handled tap wrench, deflection breakages, engraving tool holder, sharpening taps |