1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your DayPlus 21V Cordless Brad Nailer and Staple Gun. This versatile 2-in-1 tool is designed for various woodworking and fastening tasks, offering the convenience of cordless operation and efficient performance.
Please read this manual thoroughly before using the tool to ensure proper handling and to prevent injury or damage.
2. Important Safety Information
Always follow basic safety precautions when using power tools to reduce the risk of fire, electric shock, and personal injury.
- Wear appropriate personal protective equipment (PPE), including safety glasses, hearing protection, and gloves.
- 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 power switch is in the OFF position before making any adjustments, changing accessories, or storing power tools.
- Do not force the tool. Use the correct tool for your application.
- Store idle tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.
- Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use.
- Use the power tool, accessories, and tool bits in accordance with these instructions, taking into account the working conditions and the work to be performed.
Battery Safety Precautions:
- The battery must be FULLY charged before first use.
- Store the battery in a cool and dry place.
- Do not disassemble, crush, or strike the battery.
- Do not expose the battery to water or fire.
- Keep the battery away from children.
- Use only the charger provided with the tool or a compatible charger.
3. Package Contents
Carefully unpack your DayPlus Cordless Brad Nailer and check that all items are present and in good condition. If any items are missing or damaged, please contact customer support.
- 1x DayPlus Cordless Brad Nailer / Staple Gun
- 1x Charger
- 1x 1.5AH Lithium Battery (21V)
- 500x 19mm Straight Nails (F-type)
- 500x 10mm Staples (K-type)
- 1x Plastic Storage Box
- 1x Instruction Manual (this document)

4. Technical Specifications
| Feature | Specification |
|---|---|
| Brand Name | DayPlus |
| Type | Cordless Brad Nailer / Staple Gun (2-in-1 Function) |
| Material | ABS |
| Power | 1500W |
| Battery | 21V 1.5AH Lithium-ion |
| Voltage | 110V-240V (Charger) |
| Nominal Frequency | 50Hz |
| Rated Current | 5A |
| Brad Crown Width | 2.0 mm |
| Nail Length (Straight Nail) | 15-32 mm (F15-F32) |
| Staple Crown Width | 5.7 mm |
| Staple Length (Code Nail) | 10-22 mm (K410-K422) |
| Nail/Staple Load Capacity | 100 Nails or 100 Staples |
| Firing Speed | 1 shot/sec (max. 80 shots/min) |
| Product Size | 26 x 22 cm (10.24 x 8.7 inches) |
| Net Weight | 3.55 KG (7.82 lb) |
5. Product Overview
Familiarize yourself with the components of your DayPlus Cordless Brad Nailer.

- Gun Mouth: Where nails/staples exit.
- Clip: Holds the magazine in place.
- Spring Buckle: Releases the magazine for loading.
- Start Button: Activates the firing mechanism.
- Soft Rubber Handle: Provides comfortable and secure grip.
- Power Switch: Turns the tool ON/OFF.
- Lithium Battery: Provides cordless power.
6. Setup and Preparation
6.1. Charging the Battery
- Ensure the power switch on the nailer is in the OFF position.
- Remove the battery from the nailer by pressing the release button and sliding it out.
- Connect the charger to a suitable power outlet (110V-240V).
- Insert the battery into the charger. Ensure it is seated correctly.
- Allow the battery to charge fully before first use. The charger will indicate when charging is complete (refer to charger's specific instructions for indicator lights).
- Once charged, disconnect the battery from the charger and the charger from the power outlet.
- Insert the charged battery back into the nailer until it clicks securely into place.
6.2. Loading Nails or Staples
This tool supports both straight nails (F-type) and code nails (K-type staples).

- Ensure the tool is disconnected from the battery (if not already).
- Locate the "One Click Nail Box Switch" or spring buckle on the magazine.
- Press the switch/buckle to release and open the magazine.
- Insert the appropriate nails (F15-F32) or staples (K410-K422) into the magazine. Ensure they are oriented correctly and slide smoothly. The magazine capacity is 100 nails or 100 staples.
- Close the magazine securely until it clicks into place.

7. Operating Instructions
The DayPlus Cordless Brad Nailer is designed for mobile operation, allowing you to work anywhere without the constraints of a power cord.

7.1. General Operation
- Ensure the battery is fully charged and correctly inserted, and the magazine is loaded with the desired fasteners.
- Turn on the power switch.
- Hold the tool firmly by the soft rubber handle. The anti-slip design ensures a comfortable and secure grip during extended use.
- Place the gun mouth firmly against the workpiece where you want to drive a nail or staple.
- Press the start button to fire. The tool can achieve a firing speed of up to 80 shots per minute.
- After each shot, lift the tool slightly and reposition for the next fastener.
- When finished, turn off the power switch and remove the battery for storage.

7.2. Applications
This versatile tool is suitable for a wide range of applications, including:
- General repairing and light finish woodworking.
- Picture framing and securing insulation.
- Laying carpet and underlay.
- Re-attaching fabric and affixing plastic sheeting.
- Making frames and attaching plywood paneling.
- Cabinet work, household DIY repairs, hobby, and craft projects.

8. Maintenance
Regular maintenance ensures the longevity and optimal performance of your tool.
- Cleaning: Keep the tool clean and free from dust and debris. Use a dry cloth to wipe down the exterior. Do not use harsh chemicals or abrasive cleaners.
- Magazine: Periodically check the nail/staple magazine for any obstructions or wear. Ensure the "One Click Nail Box Switch" mechanism operates smoothly.
- Battery Care:
- Always fully charge the battery before storage if it will not be used for an extended period.
- Store batteries in a cool, dry place, away from direct sunlight and extreme temperatures.
- Do not allow the battery to fully discharge for long periods, as this can reduce its lifespan.
- Inspection: Regularly inspect the tool for any signs of damage, loose screws, or worn parts. If any issues are found, discontinue use and seek professional repair.
9. Troubleshooting
This section addresses common issues you might encounter with your DayPlus Cordless Brad Nailer.
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not fire. |
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| Nails/staples are jamming. |
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| Battery not charging. |
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10. User Tips
- Battery Compatibility: The 21V 1.5AH Lithium battery included with this tool can also be replaced with a Makita 18V battery for added convenience if you own other Makita tools.
- Fastener Selection: Always ensure you are using the correct type and size of fasteners. For straight nails, use F15-F32 (15-32mm). For staples (code nails), use K410-K422 (10-22mm). Using incompatible fasteners can lead to jams or poor performance.
- Practice First: If you are new to using a nail gun, practice on scrap material to get a feel for the tool and achieve consistent results before working on your main project.
11. Warranty and Support
For warranty information, technical support, or to order replacement parts, please refer to the contact information provided by your retailer or visit the official DayPlus website. Keep your purchase receipt as proof of purchase.