Note: If you are working with polymer clay, epoxy putty, or metal miniature, you should use tools dedicated to their use. Do not use cooking tools or implements that are for food use when working with these materials. These tools come in a wide range of tip styles, firmness, and sizes, so consider if you need rounded or sharp edges, and soft or hard tips before you buy them. Sharpened dental tools are often also used for some woodcarving and scraping. They work best on hard substances, where they will carve detail effectively. They are less effective on soft materials that can cling to the metal surface.