1. Introduction
Thank you for choosing the LYUWO 20V Cordless Drill. This versatile and powerful tool is designed for a wide range of household and professional tasks, including drilling into various materials and driving screws. Featuring a rechargeable lithium battery, two-speed options, and precise torque adjustment, it offers convenience and efficiency for your projects. Please read this manual carefully before use to ensure safe and optimal operation.

2. Product Overview
Familiarize yourself with the components of your LYUWO Cordless Drill:

- 0.8-10mm Chuck Size: Keyless chuck for quick and easy bit changes.
- 2 Speed Options: Allows selection between high and low speeds for different applications.
- Radiator: Helps dissipate heat during operation.
- Reversing Push Rod: Controls the direction of rotation (forward, reverse, or locked).
- LED Light: Illuminates the work area for better visibility.
- Switch: Trigger for power activation and variable speed control.
- Soft Handle: Ergonomically designed for comfortable grip and reduced fatigue.
- Lithium Battery (20V): Rechargeable power source for cordless operation.
3. Setup
3.1 Battery Charging
Before first use, fully charge the lithium battery. Ensure the charger adapter input is within 100-240V. The charging time is typically 1-2 hours. Charge the battery in an environment where the temperature is between 10°C and 40°C (50°F~104°F).
- Connect the charger to a power outlet.
- Insert the battery into the charger.
- Allow 1-2 hours for a full charge. The battery level display on the drill will indicate charging status.
3.2 Installing/Changing Drill Bits
Your drill features a keyless chuck for convenient bit changes:
- Ensure the drill is off and the reversing push rod is in the static (locked) position to prevent accidental startup.
- Rotate the chuck counter-clockwise to open the jaws.
- Insert the drill bit or screwdriver bit into the chuck, ensuring it is centered.
- Rotate the chuck clockwise to tighten the jaws securely around the bit.
- Verify the bit is firmly held before operation.
3.3 Included Accessories (if applicable)
Depending on your purchase, your drill may come with a 28-piece electric drill kit and a tool bag. This kit provides a rich combination of drill bits and accessories for various tasks, and the tool bag offers convenient storage and portability.

4. Operating Instructions
4.1 Power On/Off and Variable Speed Control
The drill is activated by pressing the trigger switch. The speed is variable depending on how much you press the switch. Press lightly for slower speeds and fully for maximum speed.

4.2 Speed Selection
Your drill offers two speed options (high and low) to suit different applications. Use the speed selector switch located on top of the drill:
- Low Speed (0-400 RPM): Ideal for driving screws, larger drilling diameters, or applications requiring higher torque.
- High Speed (0-1600 RPM): Suitable for smaller drilling diameters and tasks requiring faster rotation.
4.3 Torque Adjustment (Clutch Settings)
The drill features 25+1 clutch settings, allowing you to adjust the torque output. This is crucial for driving screws to prevent over-tightening or stripping, and for drilling into different materials.
- Rotate the torque adjustment collar (numbered 1-25) to select the desired torque setting. Lower numbers provide less torque, higher numbers provide more.
- The '+' setting is for drilling mode, providing maximum torque without clutch disengagement.
- Choose a lower torque setting for softer materials or smaller screws, and a higher setting for harder materials or larger screws.
4.4 Forward, Reverse, and Lock Function
The reversing push rod (forward/reverse lever) controls the direction of rotation and locks the trigger:

- Forward: Push the rod to the left (when viewed from the rear of the drill) for clockwise rotation, used for drilling and driving screws.
- Reverse: Push the rod to the right for counter-clockwise rotation, used for removing screws or backing out drill bits.
- Static (Locked): Position the rod in the center to lock the trigger, preventing accidental startup. Always engage the lock when changing bits, performing maintenance, or storing the drill.
4.5 LED Work Light
The integrated LED work light automatically illuminates when the trigger is pressed, providing visibility in dimly lit work areas.
4.6 Battery Level Display
The drill features a battery level display to visualize remaining battery power at any time, helping you plan your work and recharge as needed.
4.7 Applications
The LYUWO Cordless Drill is suitable for various applications:

- Driving Screws
- Drilling in Metal
- Drilling in Wood
- Drilling in Tiles
- Drilling in Walls
- Drilling in Plastic
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your drill:
- Cleaning: Keep the ventilation openings clear and clean. Use a soft, damp cloth to wipe down the tool. Do not use harsh chemicals or abrasive cleaners.
- Battery Care: Store batteries in a cool, dry place away from direct sunlight. Do not store fully discharged batteries for extended periods.
- Chuck Maintenance: Periodically clean the chuck jaws to ensure proper grip on bits.
- Storage: Store the drill and its accessories in a dry, secure location, out of reach of children. Engage the trigger lock before storing.
6. Troubleshooting
If you encounter issues with your drill, refer to the following common problems and solutions:
- Drill does not start:
- Check if the battery is fully charged and properly inserted.
- Ensure the reversing push rod is not in the static (locked) position.
- Reduced power or short battery life:
- The battery may need recharging.
- Battery may be old and require replacement.
- Ensure you are using the correct speed and torque settings for the task.
- Bit slips in chuck:
- Ensure the chuck is tightened securely.
- Clean any debris from the chuck jaws.
- Check if the drill bit shank is damaged.
For persistent issues not covered here, please contact customer support.
7. Specifications
Key technical specifications for the LYUWO Cordless Drill (Models M-820 / LW-8012-1):
| Feature | Specification |
|---|---|
| Model | M-820 / LW-8012-1 |
| Chuck Design | Keyless |
| Chuck Size | 3/8" (0.8-10mm) |
| Clutch Settings | 25+1 |
| No Load RPM | 0-400 / 0-1600 |
| Rated Torque | 40 N.m |
| Battery Voltage | 20V |
| Battery Series | 20V MT-SER |
| Battery Charging Temperature | 10 - 40°C (50°F~104°F) |
| Charger Adapter Input | 100-240V |
| Charging Time | 1-2 Hours |
| Application | Drilling in Steel, Wood, Ceramic, Plastic, Walls; Driving Screws |
| Certification | CE |
| Origin | Mainland China |

8. Warranty and Support
For any questions, concerns, or warranty claims regarding your LYUWO Cordless Drill, please contact the seller or retailer from whom you purchased the product. AliExpress offers buyer protection and free returns within 90 days, providing peace of mind for your purchase.
- Buyer Protection: Get your money back if your order isn't delivered by the estimated date or if you're not satisfied with your order.
- Free Returns: Enjoy free returns within 90 days of purchase.
- Security & Privacy: Your personal details are kept safe and secure, and not shared with third parties without consent.
Refer to your purchase documentation for specific warranty terms and conditions.