Nothing Says NOT MY PRESIDENT like Bolt Adapter 5/8 in. 11UNC x
M10-1.25 mm (1-Pack) Product Depth (in.) 1.75 Product Width (in.) 2.5
Product Height (in.) 6.125 This fixed 5/8 in. threaded arbor hole can
help adapt any brush to fit most grinders. It will fit both cup and
wheel brushes. This unique item allows you to change the arbor size of
a brush.