
Holy eggs! When I first got them I got scared lol. As a facility maintenance manager, I have to make sure the things I buy work for my project or I fall behind like I did in this case. I was very happy to see and read that they fit the Dualt (sp?) drill bit! This was my main concern. It was the perfect match. I was able to do the job my boss gave me to clean the elevator tracks so they shine. And with that, I was able to do just that! Great price for what you get!