1. Introduction
Thank you for choosing the ONEVAN 500N.M Brushless Electric Impact Wrench. This versatile 3-in-1 tool functions as an electric wrench, electric drill, and electric screwdriver, designed for various tasks including tightening and loosening bolts, drilling, and driving screws. Its brushless motor ensures high efficiency, low wear, and long life. Please read this manual carefully before use to ensure safe and effective operation.
2. Safety Instructions
- Always wear appropriate personal protective equipment, including safety glasses, gloves, and hearing protection, when operating the tool.
- Ensure the workpiece is stable and secured before beginning any operation.
- Keep hands and loose clothing away from moving parts.
- Do not operate the tool in damp or wet conditions.
- Keep the work area well-lit and clear of obstructions.
- Always remove the battery pack before making any adjustments, changing accessories, or storing the tool.
- Use only ONEVAN recommended accessories and replacement parts.
- Do not force the tool; let the tool do the work at the appropriate speed.
- Store the tool and battery in a dry, secure place out of reach of children.
3. Product Overview
The ONEVAN 500N.M Brushless Electric Impact Wrench is a powerful and versatile tool. Key features include:
- 3-in-1 Function: Easily switch between electric wrench, electric drill, and electric screwdriver modes.
- Brushless Motor: Provides high power, low loss, long life, and high efficiency without generating sparks or wearing carbon brushes.
- Tungsten Steel Shaft: Ensures high hardness and wear resistance for durability.
- Speed Adjustable Settings: Variable speed control ranges for different work needs, with 3 forward gears and 2 reverse gears.
- Reverse Auto-Stop Function: Automatically stops when turning to the edge of the bolt, preventing nuts from falling off.
- LED Light: Illuminates the work area for better visibility.
- Battery Indicator Light: Shows the remaining battery charge.



4. Specifications
| Attribute | Value |
|---|---|
| Brand Name | ONEVAN |
| Type | Impact Wrench (3-in-1: Wrench, Screwdriver, Drill) |
| Motor | Brushless |
| Power Source | Battery (16.8V Lithium-Ion) |
| Maximum Output Power | 800W |
| Max Torque | 500N.M |
| No-load Speed | 0-4200 rpm |
| Impact Frequency | 0-3800 ipm |
| Motor Speed | 6000 rpm |
| Square Drive | 1/2 inch (12.7mm) |
| Gear Settings | 3 forward gears, 2 reverse gears |
| Standard Bolts | M10-M20 (3/8"-3/4") |
| High Strength Bolts | M10-M16 (3/8-5/8") |
| Battery Included | Yes |
| Certification | CE |
| Origin | Mainland China |
| Package Weight | 1.8 kg |
| Package Dimensions (L x W x H) | 29 cm x 28 cm x 12 cm |

5. Setup
5.1 Battery Installation and Charging
- Ensure the tool is switched off before installing or removing the battery.
- Align the battery pack with the battery slot on the bottom of the tool handle.
- Slide the battery pack into the tool until it clicks securely into place.
- To remove, press the battery release button and slide the battery out.
- To charge, connect the EU charger to a power outlet and then to the battery pack. The battery indicator lights will show charging status.

5.2 Accessory Attachment
The impact wrench features a 1/2 inch square drive for attaching sockets and other compatible accessories.
- Select the appropriate 1/2 inch socket or adapter for your task.
- Push the socket firmly onto the square drive until it locks into place.
- To remove, pull the socket off the square drive.

6. Operation
6.1 Powering On/Off and Speed Control
- Press the On/Off switch (trigger) to start the tool. The tool features stepless speed regulation; the harder you press the trigger, the faster the tool operates.
- Release the trigger to turn off the tool.
- Use the speed adjustment buttons on the control panel to select between 5 speed settings for different applications.


6.2 Forward/Reverse Function
The tool has a switch lock mechanism to select forward, reverse, or lock the trigger.
- Push the switch lock to the left for forward rotation (tightening).
- Push the switch lock to the right for reverse rotation (loosening).
- Position the switch lock in the center to engage the trigger lock, preventing accidental startup.

6.3 3-in-1 Functionality
This tool can be used as an impact wrench, screwdriver, or drill depending on the accessory attached to the 1/2 inch square drive.
- Impact Wrench: Attach appropriate sockets for tightening or loosening nuts and bolts.
- Screwdriver: Use a 1/2 inch to hex adapter with screwdriver bits for driving screws.
- Drill: Use a 1/2 inch to drill chuck adapter with drill bits for drilling holes.



7. Maintenance
- Cleaning: Regularly clean the tool's exterior with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners. Keep ventilation openings clear of dust and debris.
- Battery Care: Store batteries in a cool, dry place. Do not expose them to extreme temperatures. Charge batteries fully before long-term storage and recharge every 3-6 months to maintain battery health.
- Inspection: Periodically inspect the tool for any signs of damage, loose screws, or worn parts. If any damage is found, discontinue use and contact customer service.
- Lubrication: This tool is designed for maintenance-free operation. No additional lubrication is required.
8. Troubleshooting
- Tool not starting: Check if the battery is fully charged and properly inserted. Ensure the forward/reverse switch is not in the center (locked) position.
- Reduced power/performance: The battery may be low on charge. Recharge the battery. Ensure the correct speed setting is selected for the task.
- Excessive vibration or noise: Stop the tool immediately. Check for loose accessories or damaged parts. Contact customer service if the issue persists.
- Battery not charging: Ensure the charger is properly connected to both the power outlet and the battery. Check for any damage to the charger or battery.
9. User Tips
- Check Package Contents: Always verify that your kit includes the charger and the specified number of batteries upon receipt.
- Battery Compatibility: While this tool uses 16.8V Lithium-Ion batteries, always check the voltage and connector type if attempting to use batteries from other brands (e.g., Bosch 10-volt) to ensure compatibility and prevent damage.
- Spare Batteries: Consider purchasing spare batteries for extended work sessions, especially for demanding tasks.
10. Warranty and Support
ONEVAN offers a 12-month free replacement warranty for this product. For any warranty claims, technical support, or service inquiries, please contact the ONEVAN Official Store customer service. Keep your purchase receipt as proof of purchase.