Review on 🔩 Enhanced Bi-Metal ARTIPOLY Mandrels Adapters for Drywall by Ken Kowal

I'm an electrician so I use them quite a bit. I was hesitant to buy these because of the price but they have lasted as long as brand name hole saws. The only thing that didn't last long were the pilot bits, they broke almost immediately which isn't a big deal. I have a lot of beats. I've used a 2" hole saw to drill through some fairly thick joists and they still haven't blunted. I also use them for metal cutting and they are perfect.