Believe it or not, the 12” diameter was a hard item to find on the internet. After 2 days, I found it on your website. And now I have you bookmarked in my favorites. I had just received my new belt/disc Powermatic combo machine and I was not going to put on their supplied PSA 60 grit disc! Previously, I had owned a Shopsmith Mark VII that included a 12” H&L, and so I was “hooked”! Waiting 3 days to put this item on my belt/disc sander was worth the wait! THANK YOU 2Sand!