| Year | 1951 |
| Date | 22-Nov |
| Volume | 105 |
| Issue | 2,635 |
| Page | 690 |
| Category | Novices' Corner |
| Part | |
| Title | Cutting Holes in Sheet Material |
| Author | |
| Notes | A form of washer cutter, dividers are used, a punch, a crown-saw, cutting holes in sheet material, hole-cutter tool, a countersink and centre drill, the Enox circular cutter, a novel form of sheet metal punch |