Smooth cutting depends on an effective lubricant. Often imitated, never equaled BurLife® stays in position and is drawn into the area of contact between the tool and workpiece like a coating of microscopic ball bearings on the surface. Keeps cutting tools such as saw blades, files, burs sharp for smoother cuts, less friction and a longer working life! Leaves no residue when heated. Contains no animal products. Is non-toxic and non-staining. Washes off easily and is odorless.