Important Safety Instructions
Always follow basic safety precautions when using this power tool to reduce the risk of fire, electric shock, and personal injury. Read all instructions before operating the tool.
- Work Area Safety: Keep your work area clean and well-lit. Cluttered or dark areas invite accidents.
- Electrical Safety: Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
- Personal Safety: Stay alert, watch what you are doing, and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol, or medication.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. It will do the job better and safer at the rate for which it was designed.
- Battery Tool Use and Care: Prevent unintentional starting. Ensure the switch is in the off-position before connecting to battery pack, picking up or carrying the tool.
What's in the Box
Your DEWALT 20V MAX XR Oscillating Tool Kit (DCS356C1) includes the following components:
- (1) DCS356 20V MAX* XR Brushless 3-Speed Oscillating Multi-Tool
- (1) 20V MAX* Lithium Ion Battery
- (1) DCB107 Charger
- (1) Wood Cutting Blade
- (1) Wood/Metal Blade
- (1) Universal Accessory Adaptor
- (1) Kit Bag

Image: All components included in the DEWALT 20V MAX XR Oscillating Tool Kit, including the tool, battery, charger, blades, universal adapter, and kit bag.
Setup
1. Battery Installation and Removal
- To Install: Align the battery pack with the tool's battery port. Slide the battery pack into the tool until it clicks securely into place.
- To Remove: Press the battery release button (usually located on the battery pack) and slide the battery pack out of the tool.
2. Accessory Installation and Removal (Quick-Change System)
The Quick-Change accessory system allows for rapid blade and attachment changes without the need for wrenches.
- Ensure the tool is off and the battery is removed.
- Locate the Quick-Change lever on the tool head.
- Push the lever to release the accessory clamp.
- Insert the desired accessory (blade, sander pad, etc.) onto the accessory shaft, ensuring it is properly seated.
- Release the Quick-Change lever to secure the accessory. Verify the accessory is firmly held in place before use.
3. Universal Accessory Adaptor
The universal accessory adaptor allows compatibility with most oscillating tool accessory brands. Attach the adaptor to the tool's accessory shaft first, then secure the non-DEWALT accessory to the adaptor using its specific fastening mechanism (e.g., screw, clamp).

Image: Overview of the DEWALT Oscillating Tool highlighting the LED Light, Brushless Motor, Quick-Change Accessory System, and 3-Speed Selector.
Operating the Tool
1. Powering On/Off
The tool is activated by the DUAL-GRIP variable-speed trigger. Squeeze the trigger to start the tool and release it to stop.
2. 3-Speed Selector
The 3-speed selector switch (labeled 1, 2, 3) allows you to choose the optimal speed setting for your application.
- Setting 1: Lower speed for delicate work or materials requiring less aggressive action.
- Setting 2: Medium speed for general-purpose tasks.
- Setting 3: High speed for maximum material removal or cutting tough materials.

Image: A detailed view of the 3-speed selector switch on the tool, showing settings 1, 2, and 3.
3. Dual-Grip Variable-Speed Trigger
The trigger provides variable speed control. Pressing the trigger further increases the oscillation speed, allowing for precise control over different applications and materials.

Image: A hand demonstrating the use of the Dual-Grip Variable-Speed Trigger for application control.
4. LED Work Light
The integrated bright LED light illuminates dark work surfaces, improving visibility and accuracy during operation. The light activates when the trigger is pressed.

Image: The tool in use, with its bright LED light illuminating a dark work surface for precise cutting.
5. Brushless Motor Technology
The brushless motor provides increased runtime and durability compared to brushed motors, delivering efficient power for various tasks.

Image: The tool being used to cut into a surface, demonstrating the power of its brushless motor.
Maintenance
1. Cleaning
- Keep the tool's ventilation slots clean to prevent overheating.
- Use a clean, damp cloth to wipe down the exterior of the tool. Do not use solvents or harsh chemicals.
- Regularly clear dust and debris from the accessory mounting area.
2. Battery Care
- Store batteries in a cool, dry place away from direct sunlight and extreme temperatures.
- Do not store batteries in a discharged state for extended periods.
- Use only DEWALT chargers to charge DEWALT batteries.
3. Accessory Inspection
Inspect blades and other accessories before each use for wear, damage, or dullness. Replace worn or damaged accessories to ensure optimal performance and safety.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start | Battery not charged or improperly installed; Tool switch faulty | Charge battery fully and re-install; Contact service center if switch is faulty |
| Reduced performance | Dull or incorrect accessory; Low battery charge; Overheating | Replace accessory; Charge battery; Allow tool to cool down |
| Excessive vibration | Accessory not properly secured; Damaged accessory | Re-secure accessory; Replace damaged accessory |
Specifications
| Feature | Specification |
|---|---|
| Brand | DEWALT |
| Model Number | DCS356C1 |
| Voltage | 20 Volts MAX* |
| Power Source | Battery Powered |
| Motor Type | Brushless |
| Speed Settings | 3-Speed Selector |
| Accessory System | Quick-Change, Universal Adaptor |
| Item Weight | 3 pounds (tool only) |
| Battery Type | Lithium Ion |
| Battery Charge Time | Approximately 1 hour (with included charger) |
*Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18 volts.
Warranty Information
This DEWALT product is covered by a 3 Year Limited Warranty. For specific details regarding warranty coverage, limitations, and how to make a claim, please refer to the official warranty documentation included with your product or visit the DEWALT website.
The warranty typically covers defects in materials or workmanship for the specified period from the date of purchase. It does not cover damage caused by normal wear and tear, misuse, abuse, alteration, or unauthorized repair.
Support
For technical assistance, service, or to order replacement parts, please contact DEWALT Customer Service. You can find contact information, including phone numbers and online support resources, on the official DEWALT website:
Please have your tool's model number (DCS356C1) and serial number (if applicable) ready when contacting support.