I used the cheapest one I could find at Home Depot to score the glass and used a scrap piece of 2x4 to peck on the bottom side under the score line to get it breaking. I also put a slight downwards pressure on the edge of the glass hanging off the table, it seemed to help on a couple pieces. I was cutting half inch glass but I doubt it would be much different for 5/8's. Make sure to start at the end of your score and not where you started scoring from. Once it starts to break stay about an inch behind the crack and just tap it all the way down. Do not start tapping ahead of the break, I've heard it can throw your break off the score line. After it was cut I used a palm sander with 60 or 80 grit to sand the edges and knock the corners down. I might of got lucky but my breaks were surprisingly clean so all I had to do was just touch it with the sander. Overall it was way way easier than I had imagined, it was the stress from worrying about ruining it that got me down in the beginning.
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