1. Safety Information
Always read and understand all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury.
- Work Area Safety: Keep your 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. Power tools create sparks which may ignite the dust or fumes.
- Electrical Safety: Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
- Personal Safety: Always wear eye protection. Use appropriate safety equipment such as dust masks, non-skid safety shoes, hard hats, or hearing protection for appropriate conditions.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
- Battery Tool Use and Care: Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
2. Product Overview
The TEENO 20V Cordless Oscillating Multi-Tool is designed for versatile applications including cutting, sanding, scraping, and trimming. It features a cordless design for flexibility, variable speed control, an LED work light, and a quick-change blade system.

Figure 2.1: Complete kit contents of the TEENO 20V Cordless Oscillating Multi-Tool, including the tool, battery, charger, auxiliary handle, various blades, sanding pad, sanding sheets, and a carrying bag.
Key Components:
- Oscillating Tool Body: The main unit housing the motor and oscillation mechanism.
- 20V Lithium-Ion Battery: Provides cordless power.
- Battery Charger: For recharging the battery.
- Auxiliary Handle: Attachable handle for improved control and stability.
- Quick-Lock Change System: Mechanism for fast and tool-free accessory changes.
- Variable Speed Dial: Adjusts oscillation speed from 8,500 to 21,000 OPM.
- LED Work Light: Illuminates the work area for better visibility.
- Battery Indicator: Displays remaining battery power.
- Assorted Blades and Accessories: Includes straight saw blades, segment saw blade, flexible scraper, sanding pad holder, straight spatula, and sanding sheets for various tasks.
3. Setup
3.1 Battery Installation and Charging
- Charge the Battery: Before first use, fully charge the 20V Lithium-Ion battery using the provided charger. Connect the charger to a power outlet and insert the battery. The indicator lights on the battery will show the charging status.
- Install the Battery: Align the battery with the battery slot on the bottom of the oscillating tool. Slide the battery into place until it clicks securely. Ensure it is firmly seated to prevent accidental detachment during operation.
- Check Battery Level: Press the battery indicator button on the battery pack to check the remaining charge.

Figure 3.1: The battery indicator lights on the TEENO 20V battery pack, showing the real-time power level.
3.2 Attaching Accessories
The TEENO oscillating tool features a tool-free quick-change blade system for easy accessory attachment.
- Unlock the Lever: Lift the quick-lock control lever on the tool head to a 180° open position.
- Insert Accessory: Align the accessory (blade, sanding pad, scraper) with the universal interface on the tool head. Ensure it is properly seated.
- Lock the Lever: Press the control lever back down firmly until it locks into place. This secures the accessory.

Figure 3.2: Step-by-step guide for attaching accessories: 1) Lift the control lever to 180°, 2) Insert the blade, 3) Lock the control lever into place.

Figure 3.3: Close-up view of the quick-change system, illustrating the pull-to-unlock, insert accessory, and press-to-lock actions.
3.3 Attaching the Auxiliary Handle
The auxiliary handle can be installed on either the left or right side of the tool to increase cutting force and stabilize the cutting position.
- Locate Mounting Points: Identify the threaded mounting points on both sides of the tool head.
- Screw in Handle: Screw the auxiliary handle into the desired mounting point until it is tight and secure.

Figure 3.4: The auxiliary handle attached to the TEENO oscillating tool, demonstrating its adjustable positioning for enhanced control.
4. Operation
4.1 Powering On/Off
- To Turn On: Slide the ON/OFF switch to the "ON" position.
- To Turn Off: Slide the ON/OFF switch to the "OFF" position.
4.2 Adjusting Speed
The tool features a 6-speed variable dial to match the oscillation rate to the material and application.
- Speed Adjustment: Rotate the variable speed dial to select the desired oscillation speed (1-6). Lower speeds are suitable for delicate tasks or softer materials, while higher speeds are for aggressive cutting or harder materials.

Figure 4.1: The 6-speed variable dial, allowing precise control over the tool's oscillation rate for different materials and tasks.
4.3 Using the LED Work Light
The integrated LED work light automatically activates when the tool is in operation, providing illumination for dark or confined work areas.

Figure 4.2: The LED light on the TEENO oscillating tool, providing enhanced visibility in dimly lit working conditions.
4.4 Application Tips
- Cutting: For precise cuts, allow the blade to reach full speed before engaging with the material. Apply steady, even pressure.
- Sanding: Use the appropriate grit sanding paper for your material. Move the tool in a consistent pattern to avoid uneven sanding.
- Scraping: Position the scraper blade at a shallow angle to the surface and apply gentle pressure to remove material.
- Oscillation Angle: The 4° oscillation angle is designed for efficient material removal.

Figure 4.3: Examples of the multi-functional capabilities of the TEENO oscillating tool, including cutting, sanding, and scraping.
5. Maintenance
5.1 Cleaning
- After Each Use: Disconnect the battery. Clean the tool's ventilation openings and housing with a soft, damp cloth. Do not use solvents or abrasive cleaners.
- Accessory Cleaning: Clean accessories as needed to maintain their effectiveness. Remove any debris or buildup from blades and sanding pads.
5.2 Storage
- Storage Location: Store the tool and accessories in a dry, secure place, out of reach of children.
- Battery Storage: Store batteries in a cool, dry place, away from direct sunlight and extreme temperatures. For long-term storage, it is recommended to store batteries with a partial charge (around 50%).
- Carrying Bag: Utilize the provided carrying bag for organized storage and transport of the tool and its accessories.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start. | Battery not installed correctly or discharged. | Ensure battery is fully inserted and charged. |
| Reduced performance or overheating. | Overloading the tool, dull accessory, or blocked ventilation. | Reduce pressure, replace accessory, clear ventilation openings. |
| Accessory not secure. | Quick-lock lever not fully engaged. | Ensure the quick-lock lever is pressed down firmly until it clicks. |
7. Specifications
- Brand: TEENO
- Model: 1 Battery
- Voltage: 20 Volts
- Power Source: DC (Battery)
- Oscillation Speed: 8,500 – 21,000 OPM (Oscillations Per Minute)
- Variable Speeds: 6 settings
- Oscillation Angle: 4°
- Special Features: Cordless, LED Work Light, Quick Attachment Changing System
- Included Components: Oscillating tool, Auxiliary Handle, 3x Straight Saw Blades, 1x Segment Saw Blade, 1x Flexible Scraper, 1x Sanding Pad Holder, 1x Straight Spatula, 15x Sanding Sheets, Tool Bag, Charger
- Item Weight: 4.64 pounds (2.11 Kilograms)
- Battery Type: 1 Lithium Ion battery (included)
8. Warranty & Support
For warranty information, technical support, or to purchase replacement parts, please contact TEENO customer service. Refer to the product packaging or the official TEENO website for the most up-to-date contact details.
You can also visit the official TEENO store for more products and information: TEENO Store on Amazon