Features Portable Design: Straight type pneumatic chisel set, the handle is ergonomically designed, comfortable and effortless to hold for long term operation. Aluminum Alloy Material: The 1/4in straight air chisel has precise high pressure vacuum cast aluminum alloy body, wear and drop resistant, and not easy to corrode after long term use. Excellent Cylinder: Reinforced alloy cylinder is adopted, with larger air storage capacity and strong impact force, easier and more efficient work. Easy to Install: The 1/4in air chisel kit has advanced self locking head structure design, easy to install and remove the shovel, with stable performance and higher efficiency. Wide Application: The pneumatic shovel is used for deburring of small and medium castings, shovel cutting of weld grooves, grinding stone, opening work of concrete and brick wall, etc. Specification: Item Type: Pneumatic Air Chisel Model: KP 764 Material: Aluminum Alloy No Load Speed: 4000rmp Impact Speed: 4000bpm Working Air Pressure: 6.2kg/cm² Intake Port: 1/4in Air Consumption: 6cfm Working Pressure: 0.6Mpa Piston Stroke: Approx. 22mm / 0.87in Product Use: Mainly used for sand cleaning of castings and deburring of small and medium sized castings, shovel cutting of weld grooves, correction of openings in stone, concrete and brick walls Package List: 1 x Air Chisel 1 x Intake Connector 1 x Shovel Note: Handle color random delivery. Operation Suggestion: 1. Before and after use every day, please inject 2‑3CC of #60 pneumatic lubricating oil (sewing machine oil) from the air inlet. 2. Let the machine idle for a few seconds after filling with oil. 3. Generally, the air source compressed by the traditional air compressor contains water, and the lubricating oil in the air compressor brought out by the aircompressor piston. If the oil water separator is not used, the water and oil enter the pneumatic tool with the air, which will cause wind If the blade is stuck, once the tool is started, the blade will not be thrown away, and it may not even be able to start. If it can be started, the torsion will be insufficient. Be sure to pay attention to refueling regularly to keep the tool at normal torsion. Package List 1 x Air Chisel 1 x Intake Connector 1 x Shovel