Formulated for use on soft metal, such as aluminum, copper, and brass, these sulfur-free lubricants won’t stain. They reduce friction between your cutting tool and workpiece to make cutting cycles faster and easier, improve surface finishes, and extend tool life. Lubricants are chlorine free for use where chlorine waste disposal is a concern. They cannot be sold to California due to local regulatory limits on on VOCs (volatile organic compounds). Use at full strength.