1. Introduction
Thank you for choosing the Xiaomi Mijia Brushless Electric Drill 2. This multi-functional smart home power tool is designed for efficient drilling and screwing tasks around your home. Featuring a high-performance brushless motor, a large capacity battery, and versatile operating modes, it provides a powerful yet user-friendly experience. Please read this manual carefully before use to ensure safe and optimal operation.
Figure 1: Xiaomi Mijia Brushless Electric Drill 2 and its EVA storage case.
2. General Safety Guidelines
- Always wear appropriate personal protective equipment, such as safety glasses, gloves, and hearing protection, when operating the drill.
- Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
- Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
- Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
- Ensure the drill bit or screwdriver bit is securely fastened in the chuck before operation.
- Avoid accidental starting. Ensure the switch is in the off-position before connecting to battery pack, picking up or carrying the tool.
- Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
- Disconnect the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools.
- Use the correct tool for your application. Do not force the tool.
3. Package Contents
Please check the box for the following items:
- Electric Drill x 1
- Drill Bit x 5
- Drill Bit Sleeve x 1
- Bit x 10
- Extension Rod x 1
- Storage Bag x 1
- User Manual x 1
Figure 2: The complete kit, including the drill, various bits, and storage case.
4. Product Overview
The Xiaomi Mijia Brushless Electric Drill 2 is designed for versatility and ease of use. Key components and features include:
- Brushless Motor: Provides powerful, efficient, and labor-saving operation with sensitive and fast response.
- 1900mAh Lithium-ion Battery: Offers long battery life, capable of screwing approximately 600 screws or drilling about 200 holes on a full charge.
- Multi-mode Switch: Easily switch between different modes to meet various drilling and screwing needs.
- 32-Gear Adjustment: Precise control over drilling and screwing strength. Gears 1-20 are for screwing/unscrewing, and gears 21-32 are for fine drilling.
- Intelligent 'A' Gear: Automatically matches the proper torque, preventing over-tightening and damage to screws, ideal for new users.
- Ratchet Self-locking Chuck: Ensures tight occlusion and firm clamping of bits and drill bits, preventing shaking during operation.
- LED Light: Illuminates the work area, useful for dark or confined spaces.
- Reverse/Lock Button: For changing rotation direction and locking the trigger.
- Non-slip and Plastic-coated Handle: Provides a comfortable and secure grip.
- Type-C Charging Port: Convenient and universal charging interface.
Figure 3: Key features and components of the drill.
Figure 4: Control panel with mode and speed settings.
5. Setup
5.1 Charging the Battery
Before first use, fully charge the drill's battery. Connect the Type-C charging cable to the charging port on the drill and to a compatible power adapter (5V=2A, 9V=2A, or 12V=2A). A full charge takes approximately 2 hours. The battery indicator on the control panel will show charging status.
5.2 Installing/Changing Bits
- Ensure the drill is turned off and the trigger is locked (if applicable).
- Twist the self-locking chuck counter-clockwise to open the jaws.
- Insert the desired drill bit or screwdriver bit into the chuck. Ensure it is inserted as far as possible for a secure grip.
- Twist the chuck clockwise to tighten the jaws firmly around the bit. You should hear a 'click' sound indicating it's securely locked.
- For screwdriver bits, you may use the magnetic extension rod for added reach.
Figure 5: Self-locking chuck for secure bit installation.
6. Operation
6.1 Selecting Operating Mode
The drill features multiple operating modes, selectable via the control panel:
- High Speed Mode: For faster drilling, up to 1700 rpm.
- Low Speed Mode: For more controlled drilling or screwing, up to 400 rpm.
- Manual Mode (M): Allows manual adjustment of torque and speed using the 32 gears.
- Automatic Mode (A): The intelligent chip automatically adjusts torque to prevent over-tightening, ideal for general screwing tasks.
6.2 Adjusting Torque and Speed
Use the '+' and '-' buttons on the control panel to adjust the gear setting. There are 32 gears available:
- Gears 1-20: Recommended for screwing and unscrewing tasks.
- Gears 21-32: Recommended for fine drilling tasks.
6.3 Drilling and Screwing
- Select the appropriate bit and mode for your task.
- Position the drill firmly against the workpiece.
- Press the trigger to start the drill. Apply steady, even pressure.
- To reverse the rotation (e.g., for unscrewing), use the Reverse/Lock button.
Video 1: Demonstration of the drill's features and usage.
6.4 Recommended Bits and Materials
- 8mm Alloy Overlord Drill: Suitable for wood, plastic, thin metal, and lightweight concrete.
- 6mm Multi-functional Ceramic Drill: Suitable for ceramic tiles, red bricks, and plastics.
- 4/6/8mm Woodworking Drills: Specifically designed for woodworking applications.
Figure 6: Included drill bits and screwdriver bits.
6.5 Wet Drilling
For materials like ceramic tile, marble, and concrete, wet drilling is often recommended to prevent overheating and extend the drill bit's lifespan. When wet drilling:
- Ensure water injection is applied before and during drilling to cool the bit.
- Use the low speed mode.
- Apply force uniformly to avoid the bit from being stuck or broken.
Figure 7: Examples of materials suitable for wet and dry drilling.
7. Maintenance
7.1 Cleaning
- Always disconnect the drill from any power source and remove the bit before cleaning.
- Wipe the tool with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Keep the ventilation openings clear of dust and debris to prevent overheating.
7.2 Storage
- Store the drill and its accessories in the provided EVA storage bag.
- Store in a dry place, away from direct sunlight and extreme temperatures.
- Keep out of reach of children.
Figure 8: Customized EVA storage bag for organized storage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Drill does not start | Battery is low or depleted Trigger lock engaged | Charge the battery Disengage the trigger lock |
| Bit is loose or falls out | Chuck not tightened properly | Ensure the chuck is twisted clockwise until it clicks securely |
| Reduced power or speed | Low battery Incorrect mode/gear selection | Recharge the battery Adjust to a higher gear or appropriate mode |
| Overheating during use | Prolonged heavy use Blocked ventilation openings | Allow the tool to cool down Clean ventilation openings |
9. Specifications
| Feature | Detail |
|---|---|
| Product Name | Mijia Brushless Electric Drill 2 |
| Model Number | MJWSDZ002QW |
| Dimensions | Approx. 166 x 55 x 205mm |
| Max. Torque | 50N·m |
| No-load Speed | 0-1700 rpm (High Speed) 0-400 rpm (Low Speed) |
| Rated Voltage | 14.4V |
| Charging Input | 5V=2A; 9V=2A; 12V=2A |
| Charging Interface | Type-C |
| Rated Capacity | 1900mAh |
| Battery Type | Lithium-ion battery pack |
| Charging Time | Approx. 2 hours |
| Net Weight | Approx. 990g (including 8mm Overlord drill bit) |
| Working Temperature | -10°C to 45°C |
| Charging Temperature | 5°C to 40°C |
| Storage Temperature | -10°C to 45°C |
| Max. Clamping Diameter | Ф10mm |
| Motor Type | Brushless |
| Use | Home DIY |
Figure 9: Product Dimensions.
10. User Tips
- For delicate tasks or when working with new materials, start with a lower gear setting and gradually increase if needed.
- Utilize the 'A' (Automatic) mode for general screwing to prevent overtightening and damage to fasteners or surfaces.
- Always ensure the battery is sufficiently charged before starting a project to avoid interruptions.
- When drilling into hard materials, apply consistent pressure and allow the drill to do the work; avoid forcing it.
11. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official Xiaomi Mijia website or contact your local authorized dealer. Keep your purchase receipt as proof of purchase for any warranty claims.
