Got a rotary tool like a Dremel? This set of 10 screw mandrels is perfect for holding cut-off wheels, grinding discs, or other accessories. Made from HSS (high-speed steel) and metal, they're durable and fit standard 3.17mm (1/8\) shank tools. Each mandrel has a screw-on design to securely hold your cutting or grinding disc in place. Great for DIY projects, metalworking, jewelry making, or crafting. The pack includes 10 pieces, so you'll always have a spare. Brand new, unbranded, but solid quality. They come in simple packaging—nothing fancy, just functional. Use them with your rotary tool to cut, grind, or polish metal, plastic, or wood. Easy to swap out when worn. Whether you're a hobbyist, mechanic, or artist, these mandrels make your rotary tool way more versatile. Just screw on your disc and get to work. Note: always wear safety glasses when cutting or grinding!