BioCut Drilling & BioCut cutting paste is specifically formulated for superb performance when used with HMT Impact wrench cutting tools. Extreme pressure concentration provides accurate hole lubrication. Excellent general purpose paste lubricant when drilling, tapping, taps, countersinks, reamers and broach cutters. Chlorine Free for safer use. Suitable for use with all grades of steel including Stainless Steel & Aluminium