Review on Enhance Your Sanding Efficiency with ABN Aluminum Spindle Sanding Sleeves by Chris Edgerton

I bought these to use with the Jet Spindle Grinder. I first tried an 80 grit on hardwood. It was worse than the "stupid" bushing I replaced. He barely sanded the wood and seemed to burn more than anything. Also, it's almost impossible to put the bushing on the spindle, even after I put it in the freezer to shrink it a bit. waste of money!