High-performance chisel hammer for working on stone and metal. Non-slip rubberized handle for safety during use. Top performance with a hose inner diameter of 9 mm or more. The bit is held securely by the hexagon chuck. Includes a 4-piece 120 mm chisel set for a variety of applications. Also includes a matching attachment for use as a needle scaler. The needle scaler is designed for removing rust and cleaning surfaces. Includes one small oil bottle, one nipple, and one tensioning spring.