Mirka（H&L）魔鬼氈 AUTONET® 圓盤

These discs seem to do exactly the same job as the more expensive ones—the hook-and-loop backing holds firm even on a fast orbital sander, and the grit lasts through a full project without loading up. For the price, I’m not seeing any reason to switch back.

The 20% cost savings are real, and I honestly can't tell a difference in the finish quality on my projects. The slightly heavier backing feels more durable, which is a nice bonus for everyday use.

The dust collection is much better than with regular sandpaper, and the 20% savings let me stock up without feeling guilty. My palm sander runs noticeably cooler with these discs too.