| Year | 1919 |
| Date | 15-May |
| Volume | 40 |
| Issue | 942 |
| Page | 373 |
| Category | Workshop |
| Part | |
| Title | The Construction of Modern Braces and Bits |
| Author | E.Coates |
| Notes | Bits, sketch showing vraious comment type of shell bits, shell gimlets, centre bits & auger bits, showing various type of bits, drills augers, expanding bits, countersinks & depth gauges, various type for use in the brace, handy cases |