Altimeter Hole drillguide for 66mm OD Airframes
I noticed some of my ARC students struggling with placing and drilling Altimeter holes in their rockets. This guide or jig lets them drill holes quickly, evenly, and precisely with a drill and drill bit. Can be printed with any filament…

![[OEDG] Selfcentering drillguide](https://media.printables.com/media/prints/3a50b9c2-fb90-4872-afbb-470a35cc0c95/images/11084338_1b74dbc3-2393-46c8-b053-d2b42c22067a_601326bd-3955-4bb2-bdeb-192f45a04d98/drilljig_selfcentering_2025-nov-04_10-00-36pm-000_customizedview22344912645.png)





