Let me tell you about my weekend warrior adventures with these diamond cutting discs. I bought them specifically for upcycling wine bottles into planters, and boy did they deliver - with some unexpected surprises along the way.

The first cut was terrifying - glass dust flying everywhere despite my full PPE setup. But after ruining two bottles (RIP merlot), I discovered the magic trick: prescore with a glass cutter first, then let the diamond wheel follow the line while spraying constant water. Suddenly I was slicing through thick glass like it was warm butter.

What shocked me most? These discs are absolute beasts on tile too. I had to open some grout joints in my bathroom renovation, and where regular blades chipped the edges, this left surprisingly clean cuts. The 1mm thin profile makes precision work actually possible.

But fair warning - these aren't magic wands. You'll still need to: 1) Wear ALL the safety gear (I learned this the hard way when glass dust found its way down my collar), 2) Work outdoors or with serious ventilation, and 3) Accept that edges will need polishing afterward. That said, after cutting through everything from marble samples to stubborn PVC pipes, I'm convinced every DIYer should have these in their toolkit.

The included M14 nuts didn't fit my grinder (typical), but that little silver adapter washer saved the day. Three months later, I'm still on my first disc despite brutalizing countless materials. Just don't expect surgical precision - these are for when you need to get through tough materials fast, not for finishing work.