The Ronix 8907K is a 20V brushless cordless impact wrench delivering 350Nm torque with a 1/2" drive. Waterproof brushless motor for tightening and loosening bolts, lug nuts and rusted fasteners on vehicles, construction sites and home improvement jobs. Handles M10–M20 standard and M10–M16 high tensile bolts.Motor and Mechanism:The Ronix 8907K cordless impact wrench is equipped with a waterproof and brushless motor that provides excellent performance and is a perfect choice for working in wet environments. With its high-power brushless and energy-efficient motor, this battery-powered impact wrench enables outstanding functionality and ensures maximum long life. This high-efficient, fast-hitting 1/2” impact wrench delivers 350Nm torque for high performance. A durable clutch system makes this tool perfect for extensive industrial uses. Body:With its ergonomic compact size, lightweight, and small body, this robust tool enables easy operation in tight places and provides considerable power. Its high-resistance, the anti-shock body is designed with an ergonomic rubber grip to control the tool. Thanks to the best-LED work light, Ronix 8907K Brushless Impact wrench can handle projects in hard-to-reach and dark places. Gearbox:Its all-metal gearbox enables heavy-duty applications and a longer lifetime. It has a 3-speed function for Hi-Mid-Low RPM & IPM fastening control in many applications. The no-load speed of 0-1600 RPM, 0-2000 RPM (working with high power), 0-2600 RPM (operating with high speed), and the impact rate of 0-1800 IPM, 0-2500 IPM, 0-3300 IPM, provides more power and enables the tool to transmit better and higher torque of the motor.; the design of 1/2” square chuck in Ronix 8907K Brushless Impact Wrench Kit ensures high durability in tight workspaces. Chuck:Ronix 8907K tightens M10 and M20 standard bolts and M10 and M16 high tensile bolts. So, it makes it ideal for a wide variety of tasks, both professionals and homeowners. The 1/2” chuck design in Ronix 8907K ensures high durability in tight workspaces. Electronic Clutch Control Panel:The motor has an electronic clutch with three forward speed settings: 1, 2, and 3 (low, medium, and high). The speed setting is adjustable by pushing the S button on the electronic clutch control panel on the tool’s base. If the trigger is momentarily pressed, the Electronic Clutch will be activated. If one green LED is illuminated, the motor is set to Speed 1. If two green LEDs are illuminated, the motor is set to speed 2. If three green LEDs are illuminated, the motor is set to speed 3. Push the button marked S on the electronic clutch control panel to cycle through the three-speed settings and select the correct one for your specific application.Automatic Stop Function:Automatic stop motion on losing fastener. It is engaged by pushing the B button on the electronic clutch control panel. A red LED will illuminate in the third LED position to indicate that the Auto stop is engaged. Switches:The tool’s turning ON and OFF is done with a power trigger switch placed on the handle. The forward/reverse button helps to change the direction of the rotation. Battery:This product does not include batteries or a charger. But, the Ronix 8907K Impact wrench kit works with both 2.0 and 4.0Ah lithium batteries with one to run all designs and provide up to 33% longer runtime than regular battery packs. So, you can use your other Ronix 89 Lasting Series batteries to run this tool. Ronix 8907K Brushless Impact Wrench Kit has a battery charging indicator that lets you know the battery level fast and efficiently.Accessories and Packaging:The Ronix 8907K brushless cordless impact wrench Kit is supplied in a Ronix BMC hard case and includes two 2.0Ah batteries and an all-in-one fast charger.SpecificationModel8907KBattery Voltage20VBattery ChemistryLithiumChuck Size1/2” SquareNo-Load Speed"0-1600 RPM 0-2000 RPM 0-2600 RPM"Impact Rate"0-1800 IPM 0-2500 IPM 0-3300 IPM"Standard BoltM10-M20High Tensile BoltM10-M16Max Torque350NMWeight1.12KgSupplied inBMCIncludes2pcs 2Ah/20V battery, 1 Fast charger（2.2A）