Drill alignment tool. By Andrew Klein. 5:53 video:
https://www.youtube.com/watch?v=EJiAz6Nh480
Printable View
Drill alignment tool. By Andrew Klein. 5:53 video:
https://www.youtube.com/watch?v=EJiAz6Nh480
I like the concept, angle of incidence / angle of reflection used to verify perpendicular