| Year | 2023 |
| Date | 22-Sep |
| Volume | 231 |
| Issue | 4,726 |
| Page | 454 |
| Category | Workshop |
| Part | 1 |
| Title | The Twist Drill Bit |
| Author | Neil Raine |
| Notes | Remembers the 160th anniversary of the invention by Stephen A.Morse. A description of the shape and design of the twist drill bit, the shape of the point of a drill bit, references |