Heavy gauge steel with black, powder-coated finish. Provides fast, accurate line marking and guide for sawing. Metric graduations printed in white for easy reading. Measures up to 550mm and adjusts 0-70° in both directions with a tolerance of +/-2°. Heavy gauge steel with black, powder-coated finish. Provides fast, accurate line marking and guide for sawing. Metric graduations printed in white for easy reading. Measures up to 550mm and adjusts 0-70° in both directions with a tolerance of +/-2°.