The most recent submissions are listed first.
| Digest Nr | Subject and Author |
 |
| 2015.06.19.04 |
Chuck for Small Drill Bits, from John Dewey |
| 1998.04.08.16 |
Drill Bit For Tapered Holes, from Dave Clark |
| 1998.03.02.18 |
Osborn Punches and Forstner Drill Bits, from Don Teach |
 |
|