| Year | 1950 |
| Date | 16-Nov |
| Volume | 103 |
| Issue | 2,582 |
| Page | 759 |
| Category | Novices' Corner |
| Part | |
| Title | Lathe Boring Tools |
| Author | |
| Notes | Top rake, side clearance, the cutting edges, type of boring tool, Eclipse boring tools, the Nulok boring bar in its holder, a T-headed holder |