I recently was given a 60 cube. It is not drilled right now.should I get it drilled or use an overflow box. If you think I need to drill it thenwhere it is te tempers on bottomz
If it were me, I'd absolutely drill it. Some people have run HOB overflows for years without issue, but the potential is there.
Typically the bottom will be the only tempered panel, but the only way to be sure is to contact the manufacturer. You can also tell pretty reliably if you have a pair of polarized glasses... through polarized lenses, tempered glass looks different than standard glass.