1、PORTABLE DESIGN: Straight type pneumatic chisel set, the handle is ergonomically designed, comfortable and effortless to hold for long term operation. 2、ALUMINUM ALLOY: With precise high pressure vacuum cast aluminum alloy body, wear and drop resistant, and not easy to corrode after long term use. 3、EXCELLENT CYLINDER: Reinforced alloy cylinder is adopted, with larger air storage capacity and strong impact force, easier and more efficient work. 4、EASY TO INSTALL: Advanced self locking head structure design, easy to install and remove the shovel, with stable performance and higher efficiency. 5、WIDE APPLICATION: Used for deburring of small and medium castings, shovel cutting of weld grooves, grinding stone, opening work of concrete and brick wall, etc.