Xiem Studio Needle Tools are made from a solid piece of surgical stainless steel for sharpness and longevity, set in faceted, rubber, non-roll handles. Stoneware Needle Tool is for use with coarse clay. Porcelain Needle Tool is for delicate cuts on fine porcelain. Handle color may vary. - Xiem Stoneware Needle ToolXiem Needle Tool, STONEWARE - This robust needle tool is designed for removing thick, uneven rims of a coarse clay body on the pottery wheel. Its sharp point cuts through thick clay quickly and smoothly, and the broader base helps to separate and split clay away with ease, avoiding bending and breaking.