Cutting Glass Circles

I've been organizing the barn lately and came across a box that had a pair of really cool 6.25" gauges that a friend had given me.  They're pressure gauges from an ammonia refrigeration system.  I'd been meaning to mount them on the wall, but one of them was missing the glass when I got them, so I had put them in a box until I could find a glass for it.  I looked online for circular gauge glass, but the only glass circles I could find were ridiculously expensive.  So I wound up buying a circle glass cutter off ebay for about $7.  It came from China, so I had to wait about 2 or 3 weeks for it to arrive, but the price was right and I was in no hurry.  I found a good video on youtube of a guy demonstrating how to use just such a tool to cut a circle out of glass.  I've had the cutter for a while and was a little apprehensive about trying it, thinking I would probably fail 2 or 3 times before finally getting a good piece of glass without breaking it, but instead I found out that it was amazingly quick and easy to cut a circle out of glass (if you have the right tool).

I mean it was REALLY easy (and quick).

If you need to cut a circle out of glass, buy a cutter and go for it.

All I did was watch the 3 minute video below and do exactly what the guy in the video does.

https://www.youtube.com/watch?feature=player_embedded&v=1T_sb-tPdx4


And here is a picture of the finished product, followed by a picture of both gauges mounted on the wall.

The one on the left is the one I replaced the glass in.