Cold saws make precise, clean cuts in metal and use coolant to keep the blade and workpiece cool, extending blade life and eliminating thermal expansion that can alter the grain or create oxidation. They use a toothed blade designed for cold saws and are often used for high-volume cutting applications in metal fabrication and machine shops. The workpiece is clamped to the base and the cutting head is lowered through the material to make straight and angled cuts. Lubricants are used to improve cutting accuracy and extend blade life. High-speed cold saws are used to cut steel, and other soft metals, as well as plastic and other nonmetal materials. Low-speed saws cut steel, stainless steel, and other ferrous metals.