Many of you have been wondering why we changed our Dish Wheels over from 5/8" bore to 7/8". This was to ensure proper mounting procedures were followed. To help, we've developed a Mounting Guide for your reference.
Kutzall Sanding Discs and Dish Wheels feature a 7/8" I.D. and are intended to mount on a standard electric angle grinder with a 5/8" shaft. They mount on the 7/8" shoulder found on the shouldered bushing or adapter included with most angle grinders. If for some reason your angle grinder does not have one of these bushings, you may obtain one by contacting your grinder manufacturer. Mounting Kutzall wheels using a shouldered bushing assures that the wheel will spin as straight and round as possible. This makes working with the tool smoother and more comfortable, while assuring that you use the entire surface of the wheel equally. The shouldered bushing is put on the grinder first, followed by the wheel and then the nut.
Tip: Shouldered bushings may be found on the parts list for your grinder on the manufacturer's website.