| Year | 1953 |
| Date | 13-Aug |
| Volume | 109 |
| Issue | 2,725 |
| Page | 191 |
| Category | In the Workshop |
| Part | |
| Title | An Internal Grinding Spindle |
| Author | "Duplex" |
| Notes | Accurate and expensive, light construction, the construction, bearing caps, spindle, dust excluders, spindle collars, driving pulley, fitting the ball-bearings, light load, even contact bearings, avoid end-thrust, collet chuck, pulley shroud |