It's pretty big. For the non-glaziers among us, what's a good way to take off the sharp edges? I made some small tanks and cut the glass myself a few years ago and didn't do anything about the edges. They are pretty sharp and I have to be really careful handling the tanks. They're just little photography tanks so they get moved a lot. I have since learnt that I could have just used sandpaper and I did work on one edge. It was really tedious! Haven't yet finished sanding a whole tank. Is there something else? Are there attachments that can fit on a drill? Or something like that?