| Year | 1937 |
| Date | 15-Jul |
| Volume | 77 |
| Issue | 1,888 |
| Page | 65 |
| Category | Workshop |
| Part | |
| Title | The Principles of Lathe Tool-Grinding and Setting |
| Author | "Ned" |
| Notes | Wedge action of cutting tools, hard and tough materials, rake and clearance angles, clearance angle, angle of rake, shape of cutting edge |