Got a drum sander or rotary tool? You're gonna go through these sanding sleeves, so it's smart to buy in bulk. This pack from sourcing map gives you a whopping 100 pieces. Each sleeve is 1/2 inch in diameter and 1/2 inch long, with a fine 600 grit finish – perfect for that final smooth-down on your projects. They're made from strong resin-bonded aluminum oxide, so they cut well and last a decent while. You'll need a matching drum mandrel to use them – just slide the sleeve on and you're ready to deburr, shape, or smooth wood, plastic, metal, even ceramics. They come in other sizes too (1/4\, 3/8\), but this pack is all about the 1/2\ size. Whether you're a serious woodworker or a weekend DIYer, having a big stash of these means you never have to stop in the middle of a job. Super handy and cost-effective.