| Year | 1916 |
| Date | 04-May |
| Volume | 34 |
| Issue | 784 |
| Page | 306 |
| Category | Workshop |
| Part | 11 |
| Title | How Machine Tools Work |
| Author | Fred Horner |
| Notes | The Equipment of Drilling Machines. Other kinds of drills, flat-ended, under-cutting tool, countersinks and counterbores, annular drills for sheet metal, combined drilling & counter-sinking tools, counterbores, boring bar steadied in bush in table, methods of driving drills, taper shank with tang, socket & sleeve, Trump chuck with split collets, drill chucks, Skinner 3-jaw chuck, Jacob's 3-jaw drill chuck with key, tow jaw drill chuck showing method of fitting to spindle |