This product is designed for tightening and loosening nuts in wood, metal, and plastic under general conditions. The performance and characteristics of the product are as follows: Standard bolts size M16-M36, high-strength bolts size M14-M30, and square head screws/socket size 3/4 inch (19.05 mm)
21V Cordless Impact Wrench Model IW2021 SUMO, high-torque cordless wrench with a maximum tightening torque of 2,100 N⋅m and a maximum nut-busting torque of 2,600 N⋅m.
Maximum speed: 1,300/1,500/1,700 RPM.
Maximum impact rate: 1,800/2,100/2,300 IPM.
Auto Stop Mode stops when the nut is loosened.
Genuine Brushless motor with premium grade copper wire.
Premium grade gears for precision, low friction, and high torque resistance.
Body made from new high quality plastic, heat resistant and non-shrinking.
High quality 21V 8.0Ah battery with full capacity.
Manufactured in world class facilities, meeting verifiable TIS standards.
8.0A FAST CHARGER, fully charges in only 1 hour.
Specially designed stackable storage box made from tough, durable, new plastic
Warranty: 3 years for the motor, 1 year for the battery and circuit board
Tightening a Nut Place the block end onto the nut head. Apply appropriate pressure to the tool. Slowly press the start switch, then gradually increase the speed, and release the switch button once the nut is fully tightened.
Removing a Bolt/Screw Place the block onto the bolt head. Start the tool at maximum speed. When the bolt is about to be loosened, slowly release the switch button until the bolt is completely removed.
Speed Adjustment and Auto-Stop Button Clockwise (Forward Mode): Use the adjustment button to toggle between High and Low torque settings. Counter-Clockwise (Reverse Mode): Press the Auto-Stop button to enable or disable the automatic stop function: 1st Press: Auto-Stop indicator 1 illuminates (Auto-Stop Mode Level 1). 2nd Press: Auto-Stop indicator 2 illuminates, and indicator 1 turns off. 3rd Press: Both indicators turn off (Auto-Stop Mode disabled/Continuous rotation). Note: This function provides precise control over torque and prevents bolts from falling off or over-impacting during removal.
Auto-Stop Mode Level 1: Once the bolt is loosened, the tool will automatically trigger a reverse rotation. The reverse speed and duration are precisely synchronized to match the loosening process, ensuring the bolt is removed safely and efficiently.
Auto-Stop Mode Level 2: Once the bolt is loosened, the system will automatically reduce the speed to a slow, controlled rotation. This ensures the bolt can be removed gently and prevents it from falling off unexpectedly.
If the panel indicators go out, lightly press the trigger switch to reactivate the display
After inserting the tool, please gently pull the block by hand to confirm that it is securely fastened to the wrench head.
The term operating mode here refers to the preset modes in the tool that correspond to different rotational speeds and impact forces. Selecting the appropriate operating mode based on the work situation can speed up the task or improve the quality of the work.
If you are going to use a spare battery to continue working, allow the tool to rest for at least 15 minutes before starting the operation again.
Always make sure the tool is turned OFF and the battery cartridge is removed before adjusting or checking the tool's functions.
Always check the direction of rotation before operating the tool.
Use the reverse rotation switch only when the tool has completely stopped.
Changing the direction of rotation before the tool stops completely may damage the tool. When the tool is not in use, the rotation direction lever should always be set to the neutral (center) position. The trigger switch cannot be pressed, and the tool will not operate if the direction lever is in the center position.