This compact gritblast gun fires dry abrasive particles at high speed, quickly removing rust, scale, old paint etc. Ideal for cleaning pitted surfaces, crevices and other hard to reach places. Metal construction with specially hardened steel nozzle. 3M suction hose - draws abrasive grit (aluminium oxide) from separate container. 80 - 100 psi working pressure. Requires 3hp air compressor with receiver for effective use. ¬ BSP air hose connector.