Review on 4-1/2 Inch Continuous Rim Diamond Saw Blade - Cut Through Any Material! by Kurt Manning

I had this blade back in its packaging and ready to send back. When I went to install in my trusty skill saw the center mounting hole was too big on the blade. Have never had this issue when buying blades. As I'm doing more man work in the garage I see a strange looking washer on the ground. And obviously new. Turns out that is the necessary ring between the blade and saw mount. Once installed, i was able to cut my landscape bricks easily. Good price for performance in my opinion. Strange design but not all made the same I guess.