Go to donkees webpage there is some info on there
about proper sanding techs.basically there are 6 sides
to a ball and you have to sand all six sides for it to
stay round. Use lots of water and I usually use scotchbrite
pads to do all major resurfacing jobs, then if needed use
sandpaper to get the right grit surface on the ball.

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Saws are made to cut ANYTHING including 10 pins