Glasses (Clock & Barometer)
Barometer Glasses requiring holes need to be drilled using our diamond coated core drills (see items D47369).
- Ideally used with a drill press
- Or a wooden template with a hole the same size to start
- You will need to use water to cool the drill bit
- See You Tube Link: https://www.youtube.com/watch?v=U_NtTBTGp20