⭐【Size】: 1 Set 1/4"Stem Mandrel + 2 Pcs Cutoff Wheel, outside diameter 3 inches (76mm); inside diameter 3/8 inches (9.5mm); thickness: 1/24 inches (1mm); ⭐【Design】: This is the perfect mini cutting kit to keep in your toolkit, ideal for cutting jobs where a dremel is too big and an angle grinder is too small, It will save you a lot of budget and bring convenience. ⭐【Compatibility】: It can be mounted on a small 3/8" arbor cutting tool and is recommended to be mounted on the supplied mounting shaft and used on a drill or die grinder - sparks may be generated when using this attachment. ⭐【Performance】: Industrial-grade high-precision cutting, diamond grain coating, ultra-thin 0.04 inch thick, all work together to ensure high-speed cutting capability, long-lasting stability, and fracture resistance, and when cutting stainless steel, you'll find it cuts like a hot knife through butter ⭐【Application】: Designed to cutting stainless steel, cast iron, steel pipe, bronze, brass, nuts, bolts, screws, ferrous and non-ferrous metals, won't explode or fall apart, and doesn't generate too much dust, which helps keep the table cleaner ⭐【Note】: If you use it to cut some PVC pipes & thin metal then a max.1500RPM 18V Power Drill will be enough, if you need to cut big bolts or other hard metals please choose a Die Grinder, after testing at 10000RPM it already can cut most size metal, the recommended max.speed is 21,000RPM, Please avoid running at this speed. Sbestily Die Grinder Cut Off Wheels 3 Inch Kit, Diamond 3" x 1/24" x 3/8" Cutting Wheel, Metal & Stainless Steel Cutting Disc for Die Grinder Drill Attachment Cutter Disc