The product is 2PK 3/16" Grinder</br>Easy to use</br>The product is manufactured in China</br>High-quality industrial abrasive for demanding grinding applications</br>Silicon carbide for sharpening and deburring hard materials</br>Specially designed for working with conic surfaces</br>Ideal for grinding stone?? glass?? ceramic?? porcelain?? gemstones and nonferrous metals</br></br>Product Description</br></br>The Dremel 1/8 in. Silicon Carbide Grinding Stone is designed for sharpening?? deburring and grinding very hard materials?? such as ceramics and porcelain. Dremel Attachments and Accys are designed to be just what you need to complete projects. Ideal for sharpening?? deburring and general purpose grinding on harder materials including stone?? glass?? ceramic?? porcelain?? gemstones and non-ferrous metals.</br><br/>http://www.amazon.com/gp/product/B00004UDKD