A handfull of collets for things 16682 and/or 16890 !
The ZIP file contains 48 STL to accomodate the drill bits I use the most.
As you can see, there's also collets for hex bits, size 6.25mm face to face.
They work fairly well, check out the pic with the piece of wood, it's a 15mm thick piece of oak and I have been able to go through it with the 1mm bit ! yes, it took me a while ;-)
625x010_hv_collet.stl | 139.5KB | |
625x025_hv_collet.stl | 139.7KB | |
625x050_hv_collet.stl | 139.7KB | |
collets4tapHolder.scad | 3.2KB | |
collets4tapHolder.zip | 555.0KB |