Klingspor, Klingspor, and what I don't get from there, I get from Klingspor. If Klingspor doesn't have it, then I probably don't need it. The only problem I have with Klingspor is their quality is TOO GOOD. Stuff lasts too long. I get the stock to make my disks 6", 9", and 12" from their bargin bin. Cut out a circle and spray the back with adhesive. I use their 5" X 5 hole H&L paper on my ROS's. Buy 3 X 21 belts from them also, along with rolls in bargin box that I cut to go on my finish sander. Get my silicon carbide for the "scary sharp method" their also.