Feature:1. Allows for flexible application to deburring, shovelling, boring, slotting, carving, chiselling and so on.2. This air shovel has a great power that can easily open brick and chisel wall, convenient and efficient.3. Ergonomic design perfect fits the palm size, and it is not tired after long time holding and operating.4. Strong tension spring can effectively buffer the vibration generated by the blade and ensure stability.5. This set also includes 4pcs chisel heads in different specifications, meeting your various working needs.Specification:Item Type: Air ChiselMaterial: Alloy steelModel: KP-762Shovel Handle Diameter: Approx. 10mm / 0.4inImpact Speed: 4200bpmWorking Stroke: Approx. 67mm / 2.6inWorking Pressure: 6.2kg/cm²Intake Connector: 1/4in (6.35mm) Package List:4 x Shovel Head1 x Air Chisel1 x User Manual1 x Spring1 x ConnectorNote:Before use, confirm whether the collet is fixed properly and ensure that the air nozzle has no leakage.