DongCheng DCPB358 (Type EM) 20V MAX Brushless Impact WrenchThe DongCheng DCPB358 (Type EM) is a high-performance 20V MAX cordless impact wrench engineered for professional fastening applications. With up to 358Nm fastening torque and 500Nm nut-busting torque, it delivers powerful and consistent performance for automotive repair, heavy equipment maintenance, steel fabrication, and construction projects.Built with a brushless motor, this compact yet powerful tool ensures higher efficiency, longer runtime, and extended motor life.Technical SpecificationsBattery Options:20V MAX4.0Ah ×2 (Type EM Package)5.0Ah ×2Solo version availableMax Power Output: 400WStandard Bolt Capacity: M12 – M18Square Drive Size: 12.7mm (1/2″)No-Load Speed:Low: 0–2000 RPMHigh: 0–2400 RPMImpact Frequency:Low: 0–2900 BPMHigh: 0–3200 BPMTorque Settings:Low: 300NmHigh: 358NmNut-Busting Torque: 500NmNet Weight: 1.1kg (solo body)Body Length: 129mm compact designKey Features & Benefits✔ Brushless Motor TechnologyHigher efficiencyReduced heat generationLonger lifespanDelivers up to 358Nm fastening torque✔ 2-Mode Speed & Torque ControlSwitch between Low and High modes for:Precision fasteningHeavy-duty bolt tighteningControlled torque output✔ Smart-Loosen ModePrevents nuts from falling off unexpectedly after loosening ideal for automotive and overhead applications.✔ Ultra-Compact 129mm BodyPerfect for:Engine baysTight mechanical spacesIndustrial machinery maintenance✔ Lightweight & PortableAt just 1.7kg, it reduces user fatigue during prolonged use.ApplicationsThis impact wrench is ideal for:Automotive repair & tire changingMechanical workshopsSteel structure assemblyConstruction projectsHome improvement tasksDIY heavy fastening jobsEquipment maintenanceHow to Use (Safety & Efficiency Guide)Insert a compatible 1/2” impact-rated socket.Secure the battery until it clicks into place.Select desired torque mode (Low/High).Position the socket firmly on the nut or bolt.Press trigger gradually for controlled fastening.Use Smart-Loosen mode when removing nuts to prevent accidental drops.Safety TipsAlways wear safety gloves and goggles.Use impact-rated sockets only.Do not exceed recommended bolt sizes (M12–M18).Ensure battery is fully charged before heavy-duty tasks.Accessories & Packaging (Type EM)4.0Ah Batteries ×22A ChargerImpact SocketBelt ClipDurable Plastic Carrying Case