| Year | 1916 |
| Date | 13-Apr |
| Volume | 34 |
| Issue | 781 |
| Page | 253 |
| Category | Workshop |
| Part | 9 |
| Title | How Machine Tools Work |
| Author | Fred Horner |
| Notes | Other Types of Sensitive Machines. Two-spindle drilling machine (Fredk. Pollard), radial drilling & tapping machine (D. & J.Tullis), radial sensitive machine, sensitive radial drill, geared pillar drilling machines |