| Year | 1916 |
| Date | 27-Apr |
| Volume | 34 |
| Issue | 783 |
| Page | 285 |
| Category | Workshop |
| Part | 10 |
| Title | How Machine Tools Work |
| Author | Fred Horner |
| Notes | The Equipment of Drilling Machines. Speeds and feeds, cutting speeds & feeds for carbon steel & high-speed twist drills, twisted drills, straight-fluted and flat drills, three and four-grooved drills, lubrication, notches in lips to break up chips, straight fluted & flat drills, four lipped twist & shell drills, oil supplying drills |