It is suitable for cutting,grinding precise stainless steel, various of alloy steel, dental metal etc Professional using incutting,grinding precise stainless steel, various of alloy steel, dental metal etc. Features:1.Durability, High efficiency and Economic2. To decrease the loss of the cutted metal3. No bad smell. SizeOD. 2.5mm-250mmID.: 0.2-31.75mmThickness: 0.2-2mm