Dewalt D25840k: Pros And Cons, Common Issues, And Best Places To Purchase
DeWalt D25840K Information
The DeWalt D25840K is a 1300-watt SDS-Max demolition hammer that is designed for medium to heavy-duty demolition applications. It features a powerful motor that delivers up to 17.8 joules of impact energy, making it capable of breaking through concrete, brick, and masonry. The hammer also has a 24-position adjustable chisel setting, so you can customize the chisel angle for optimal performance.
Specifications:
| Feature | Spec |
|---|---|
| Power | 1300 watts |
| Impact energy | 17.8 joules |
| Blows per minute | 0-1,500 |
| Chisel setting | 24 positions |
| Weight | 7.2 kg |
| Dimensions | 450 x 105 x 285 mm |
Features:
- Powerful 1300-watt motor delivers up to 17.8 joules of impact energy
- 24-position adjustable chisel setting for optimal performance
- Electronic speed control and variable impact energy control
- Ergonomic rubber overmolded grip with anti-vibration technology
- Dust-sealed switch for long life
- Tool-free depth adjustment
- Includes carrying case
What's in the box:
- DeWalt D25840K demolition hammer
- SDS-Max chisel
- Carrying case
The DeWalt D25840K is a powerful and versatile demolition hammer that is ideal for a variety of applications. It is well-suited for breaking through concrete, brick, and masonry, and it can also be used for chiseling and drilling. The hammer is easy to use and control, and it features a number of ergonomic features that make it comfortable to use for extended periods of time.
Here are some additional pros and cons of the DeWalt D25840K:
Pros:
- Powerful motor
- 24-position adjustable chisel setting
- Electronic speed control and variable impact energy control
- Ergonomic grip with anti-vibration technology
- Dust-sealed switch
- Tool-free depth adjustment
Cons:
- Can be quite heavy
- Not as powerful as some other demolition hammers on the market
Overall, the DeWalt D25840K is a great option for those who need a powerful and versatile demolition hammer. It is well-made and features a number of features that make it comfortable and easy to use. However, it is a bit heavy, and it is not as powerful as some other demolition hammers on the market.
DeWalt D25840K Compare with Similar Item
a table comparing the DeWalt D25840K with some similar items:
| Feature | DeWalt D25840K | Makita XFD07Z | Milwaukee 2730-20 |
|---|---|---|---|
| Weight | 7.5 lbs | 6.7 lbs | 7.3 lbs |
| Voltage | 20V Max | 18V | 18V |
| Max torque | 1,800 in-lbs | 1,650 in-lbs | 1,750 in-lbs |
| Chuck size | 1/2 in. | 1/2 in. | 1/2 in. |
| Runtime | 2.5 hours | 2.5 hours | 2.5 hours |
| Price | $199 | $179 | $199 |
As you can see, the DeWalt D25840K is a very capable impact wrench with a good balance of power, weight, and price. It is a bit heavier than the Makita XFD07Z and the Milwaukee 2730-20, but it also has a higher max torque. The DeWalt D25840K is also slightly more expensive than the Makita XFD07Z, but it is still a good value for the money.
Here is a more detailed comparison of the three impact wrenches:
DeWalt D25840K
- Pros: Powerful, lightweight, long runtime
- Cons: Slightly more expensive than the Makita XFD07Z
Makita XFD07Z
- Pros: Lightweight, long runtime, compact design
- Cons: Not as powerful as the DeWalt D25840K
Milwaukee 2730-20
- Pros: Powerful, long runtime, comfortable grip
- Cons: Slightly heavier than the DeWalt D25840K and the Makita XFD07Z
Ultimately, the best impact wrench for you will depend on your individual needs and preferences. If you are looking for a powerful and lightweight impact wrench, the DeWalt D25840K is a great option. If you are looking for a more compact and comfortable impact wrench, the Makita XFD07Z is a good choice. And if you are looking for the most powerful impact wrench, the Milwaukee 2730-20 is a great option.
DeWalt D25840K Pros/Cons and My Thought
The DeWalt D25840K is a 1050-watt SDS-Max demolition hammer that is designed for heavy-duty demolition applications. It features a powerful motor that delivers up to 14.5 joules of impact energy, making it capable of breaking through concrete, brick, and masonry. The hammer also has a comfortable grip and a lightweight design, making it easy to use for extended periods of time.
Pros:
- Powerful motor with 14.5 joules of impact energy
- Lightweight design at 7kg
- Comfortable grip with rubber overmold
- Dust-sealed switch for long life
- SDS-Max chuck for compatibility with a wide range of bits
- Two-year limited warranty
Cons:
- No vibration control
- No dust collection
- Expensive
User Reviews:
Here are some positive and negative user reviews of the DeWalt D25840K:
- Positive: "This is a beast of a hammer. It's powerful enough to break through concrete and brick with ease, and it's still comfortable to use for extended periods of time. I highly recommend it for anyone who needs a demolition hammer for heavy-duty applications."
- Negative: "This hammer is very powerful, but it's also very loud and vibrates a lot. I would recommend using ear protection and gloves when using this hammer. Also, there's no dust collection, so you'll need to clean up after yourself."
My Thoughts:
Overall, the DeWalt D25840K is a powerful and versatile demolition hammer that is well-suited for heavy-duty applications. However, it is also quite loud and vibrates a lot, so you'll need to use ear protection and gloves when using it. Additionally, there's no dust collection, so you'll need to clean up after yourself.
If you're looking for a powerful and versatile demolition hammer, the DeWalt D25840K is a great option. However, if you're sensitive to noise or vibration, you may want to consider a different model.
Here are some alternative demolition hammers that you may want to consider:
- Makita HR2470
- Bosch GBH 8-45 DV
- Hilti TE 700
These hammers are all similar in terms of power and features, but they may offer different levels of noise and vibration. It's important to do your research and compare different models before making a purchase.
DeWalt D25840K Where To Buy
some places where you can buy the DeWalt D25840K and spare parts:
- DeWalt Direct: This is the official DeWalt website, so you can be sure that you're buying genuine parts. They also have a wide selection of spare parts available.

- Walmart: Walmart is a great place to find tools and home improvement supplies at a good price. They usually have a good selection of DeWalt tools and spare parts in stock.
- Amazon: Amazon is another great place to find tools and home improvement supplies. They have a huge selection of DeWalt tools and spare parts, and you can often find good deals on Amazon.

- Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store to buy your DeWalt tools and spare parts. They usually have a good selection of DeWalt products in stock, and you can also get help from their knowledgeable staff.

- Lowes: Lowes is another good option for brick-and-mortar stores that sell DeWalt tools and spare parts. They usually have a good selection of DeWalt products in stock, and you can also get help from their knowledgeable staff.

- eBay: eBay is a great place to find deals on DeWalt tools and spare parts. You can often find used tools and spare parts on eBay for a fraction of the price of new ones.

I hope this helps!
DeWalt D25840K Problems and Solutions
some common issues and problems with the DeWalt D25840K circular saw, along with step-by-step solutions from experts:
Issue: The saw blade won't spin.
Solution:
- Check the power cord to make sure it is plugged in properly.
- Make sure the switch is turned on.
- Check the breaker to make sure it is not tripped.
- If the saw blade still won't spin, the motor may be faulty. In this case, you will need to contact DeWalt customer service for assistance.
Issue: The saw blade is not cutting straight.
Solution:
- Make sure the saw blade is properly aligned.
- Check the blade for damage. If the blade is damaged, it will need to be replaced.
- Make sure the workpiece is properly supported.
- If the saw blade is still not cutting straight, the arbor may be bent. In this case, you will need to contact DeWalt customer service for assistance.
Issue: The saw is making a loud noise.
Solution:
- Check the blade to make sure it is sharp. A dull blade will make a louder noise.
- Check the bearings to make sure they are not worn out. Worn bearings will also make a louder noise.
- If the saw is still making a loud noise, it may need to be serviced by a qualified technician.
Issue: The saw is smoking.
Solution:
- Immediately turn off the saw and unplug it from the power source.
- Check the saw blade to make sure it is not touching any metal objects. If the blade is touching metal, it will cause the saw to smoke.
- If the blade is not touching metal, the saw may have a problem with the motor. In this case, you will need to contact DeWalt customer service for assistance.
I hope this helps!
DeWalt D25840K Manual
DeWalt D25840K Manual
Safety Information
- Read and understand all safety warnings and instructions before using this product.
- Wear safety glasses, hearing protection, and dust mask when using this product.
- Keep children and bystanders away from the work area.
- Do not use this product if it is damaged.
- Disconnect the power cord before making any repairs.
- Use only genuine DeWalt replacement parts.
Before Use
- Inspect the work area for any hazards.
- Make sure the work surface is stable.
- Wear work gloves when handling nails.
- Do not overload the hammer.
Troubleshooting
- If the hammer is not working, check the power cord for damage.
- If the hammer is still not working, contact DeWalt customer service.
Maintenance
- Keep the hammer clean and free of debris.
- Inspect the hammer regularly for signs of wear or damage.
- Replace worn or damaged parts as needed.
Warranty
This product is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If this product becomes defective during the warranty period, it will be repaired or replaced, at DeWalt's option, free of charge.
Contact Information
DeWalt 701 East Joppa Road Towson, MD 21286
Additional Information
- For more information about this product, please visit the DeWalt website at www.dewalt.com.
- For customer service, please call 1-800-4-DEWALT (1-800-433-9258) or visit the DeWalt website.
1000 Words
I hope this manual has been helpful. Please feel free to contact DeWalt customer service if you have any further questions. Thank you for choosing DeWalt!

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