I have never been a fan of pig tail mounts for buffing wheels, they never run the same each time they get changed. As I only have one buffing machine and wheel changes are frequent I decided to make dedicated mounts for each wheel. These are easy to make and reamed a nice fit on the grinder shafts and held on with one 6mm grub screw to a flat filed on the shafts, with sturdy support washers wheels now stay true once worn in, I also made one for a keyless Kawasaki drill chuck for using wire brushes, flap wheels etc. This has been a great improvement to getting the most use out of one machine in a small workshop. While at it I made a small under storage cabinet to keep the wheels stored dust free.