Wood Doweling Jig

I have proposed design for 6mm, 8mm and 10mm hole. Are currently proposed two models.

First model is just plastic, without metal spacer. The disadvantage is that the plastic hole can be damaged during drilling
The model contains plastic parts:
- 1x doweling jig just plastic.stl
- 1x fuse.stl
- 1x screw.stl

Second model contain metal spacer for better restistance plastic hole during drilling. On the video manual you can see how to assemble tool https://youtu.be/3R7vXAq0W6U .
Spacer pad is possible stick to plastic model via glue for better fortress. Without glue, spacers pads can fall out

The model contains plastic parts:
- 1x doweling jig with spacer.stl
- 1x fuse.stl
- 1x screw.stl
- 1x plastic spacer 12mm.stl
- 1x plastic spacer 16mm.stl
- 1x plastic spacer 20mm.stl

The model contains non plastic parts:
- 4x Spacer pad 10.5 x 20.0 mm (inner x outer diameter), like this https://www.obi.sk/podlozky/lux-podlozka-priemer-10-5-mm-pozinkovana-100-kusov/p