I was delighted when I found a few 14" Erbauer cutting disks in a skip but found out that I should have left them there. They have 'steel' marked on them but when I tried one after the other in my cut off saw, they hardly marked the steel, very few sparks and edge of disks turned polished black. Deliberately wore one down on thin steel thinking it would just be a prob with the outer edge, but same prob on thick steel. Conclusion, they are sh***.
