Rubi Porcelain Tile Nipper with Carbon Steel Tips 65952 Porcelain tile nipper, heat treated carbon steel tips can be re-sharpened. Reinforced center spring for maximum durability. The scissor action makes it easier to cut hard ceramic dinnerware with Rubi porcelain nippers. Nibble tile into shape with this tool's scissor-style Tungsten-carbide tip blades.