Tool-less Angle Grinder Clamp Nut 5/8th and 7/8th inch Arbor

Tool-less angle grinder clamp nut is designed for both 5/8th inch and 7/8th inch arbor wheels.
Modeled from Ryobi P4221 angle grinder.

Usage:
Flush side of clamp nut is for a 5/8th inch wheel. Opposite side of clamp nut is for accepting (centering) a 7/8th inch wheel. Clamp nut fits 0.625inch 5/8-11 UNC.

Reason:
~ Tool-less change of wheels.
~ Though the Ryobi grinder states 5/8th inch arbor, this means the shaft. The nut set actually accepts (centers) a 7/8th inch size wheel. When a smaller 5/8th inch wheel is attached, one has to center the wheel by eye, and the wheel is not supported well on the flange.