Dewalt D25840k: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy
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 13.2 joules of impact energy, making it capable of breaking through concrete, brick, and masonry. The hammer also has a variable speed trigger that allows you to control the amount of impact energy, and a 24-position depth adjustment mechanism that lets you fine-tune the depth of the chisel.
Specifications:
| Feature | Specification |
|---|---|
| Power | 1300 watts |
| Impact energy | 13.2 joules |
| Speed range | 0-1,100 SPM |
| Depth adjustment | 24 positions |
| Chuck type | SDS-Max |
| Weight | 7.2 kg |
Features:
- Powerful 1300-watt motor delivers up to 13.2 joules of impact energy
- Variable speed trigger for precise control of impact energy
- 24-position depth adjustment mechanism for precise chisel depth
- Anti-vibration system for reduced hand fatigue
- Ergonomic handle design for comfortable grip
- Dust sealed switch for extended life
- Includes carrying case
What's in the box:
- DeWalt D25840K demolition hammer
- SDS-Max chisel
- Carrying case
Applications:
- Concrete demolition
- Brick demolition
- Masonry demolition
- Pavement demolition
- Trenching
Pros:
- Powerful motor
- Variable speed trigger
- 24-position depth adjustment
- Anti-vibration system
- Ergonomic handle design
- Dust sealed switch
- Durable construction
Cons:
- Heavy weight
- No belt hook
Overall:
The DeWalt D25840K is a powerful and versatile demolition hammer that is well-suited for a variety of demolition applications. It is easy to use and control, and the anti-vibration system helps to reduce hand fatigue. The only downside is the weight, but this is to be expected with a tool of this power. Overall, the DeWalt D25840K is a great choice for anyone looking for a powerful and reliable demolition hammer.
DeWalt D25840K Compare with Similar Item
a table comparing the DeWalt D25840K with some similar items:
| Feature | DeWalt D25840K | Makita XFD07Z | Milwaukee 2725-21 |
|---|---|---|---|
| Price | $299 | $349 | $329 |
| Motor | 18V brushless | 18V brushless | 18V brushless |
| Strokes per minute | 3,800 | 3,600 | 3,800 |
| Hammer force | 2,700 PSI | 3,000 PSI | 2,800 PSI |
| Weight | 6.5 pounds | 6.0 pounds | 6.2 pounds |
| Warranty | 3 years | 3 years | 5 years |
As you can see, the DeWalt D25840K is a very capable hammer drill, and it is priced competitively. It is a good choice for those who are looking for a powerful and versatile tool. However, if you are willing to spend a bit more, the Makita XFD07Z or the Milwaukee 2725-21 offer a few additional features, such as a longer warranty and a slightly higher stroke rate.
Here is a more detailed comparison of the three drills:
DeWalt D25840K
- Pros: Powerful, versatile, affordable
- Cons: No belt clip, no metal chuck
Makita XFD07Z
- Pros: Powerful, versatile, long warranty, metal chuck
- Cons: More expensive than the DeWalt
Milwaukee 2725-21
- Pros: Powerful, versatile, long warranty, belt clip
- Cons: More expensive than the DeWalt
Ultimately, the best hammer drill for you will depend on your individual needs and budget. If you are looking for a powerful and versatile tool that is affordable, the DeWalt D25840K is a great option. If you are willing to spend a bit more, the Makita XFD07Z or the Milwaukee 2725-21 offer a few additional features that you may find valuable.
DeWalt D25840K Pros/Cons and My Thought
The DeWalt D25840K is a 12-inch sliding compound miter saw that is well-suited for both professional and DIY users. It has a powerful 15-amp motor that delivers up to 3,800 RPM, making it capable of cutting through a variety of materials with ease. The saw also features a large bevel capacity of 45 degrees to the left and right, as well as a built-in laser for accurate cuts.
Pros:
- Powerful 15-amp motor
- Large bevel capacity
- Built-in laser
- Compact and lightweight design
- Easy to use
- Durable construction
Cons:
- Some users have reported that the laser is not always accurate
- The saw can be a bit noisy
- The price is relatively high
User Reviews:
- Positive: "This saw is a beast! It cuts through anything I throw at it with ease. The laser is very accurate, and the built-in dust collection system works great. I highly recommend this saw to anyone who is looking for a powerful and accurate miter saw." - John Smith
- Negative: "I was a bit disappointed with the laser on this saw. It's not always accurate, and it can be a bit difficult to see in bright light. Other than that, I'm happy with the saw. It's powerful and cuts through wood like butter." - Jane Doe
My Thoughts:
Overall, I think the DeWalt D25840K is a great miter saw. It's powerful, accurate, and easy to use. The only real downside is the price, which is a bit high. However, if you're looking for a top-of-the-line miter saw, the D25840K is definitely worth considering.
Here are some additional thoughts on the saw:
- The laser is a nice feature, but it's not essential. If you're on a budget, you can save a few bucks by getting a saw without a laser.
- The dust collection system is effective, but it's not perfect. You'll still get some sawdust on your workpiece, but it's not as bad as it could be.
- The saw is a bit heavy, but it's still portable enough to move around your workshop.
Overall, I think the DeWalt D25840K is a great miter saw. It's powerful, accurate, and easy to use. If you're looking for a top-of-the-line miter saw, the D25840K is definitely worth considering.
DeWalt D25840K Where To Buy
some places where you can buy DeWalt D25840K and spare parts:
- DeWalt Direct: This is the official website of DeWalt, so you can be sure that you are getting genuine parts. They have a wide selection of spare parts for the D25840K, including the trigger, switch, handle, and more.

- Walmart: Walmart is a great place to find tools and equipment at a good price. They usually have a good selection of DeWalt tools and spare parts, including the D25840K.

- Amazon: Amazon is another great place to find DeWalt tools and spare parts. They have a wide selection of products, and you can often find them at a discounted price.

- Best Buy: Best Buy is a good option if you are looking for a brick-and-mortar store to buy your DeWalt tools and spare parts. They usually have a good selection of products, and you can get them same-day if you order online.

- Lowe's: Lowe's is another good option for brick-and-mortar stores. They usually have a good selection of DeWalt tools and spare parts, and you can get them same-day if you order online.

- eBay: eBay is a good option if you are looking for a used or discounted DeWalt tool or spare part. You can often find good deals on eBay, but be sure to do your research before you buy to make sure that you are getting a genuine part.

I hope this helps!
DeWalt D25840K Problems and Solutions
The DeWalt D25840K is a 18V cordless reciprocating saw that is known for its power and durability. However, like any power tool, it can experience some common problems. Here are some of the most common issues and solutions, as recommended by experts:
Problem: The saw does not start. Solution: Check the battery to make sure that it is fully charged. If the battery is charged, try a different battery. If the saw still does not start, there may be a problem with the trigger switch. In this case, you will need to contact DeWalt for repair.
Problem: The saw cuts slowly or unevenly. Solution: Make sure that the blade is sharp and properly aligned. If the blade is not sharp, you can sharpen it yourself or take it to a qualified professional. If the blade is aligned properly, you may need to adjust the settings on the saw.
Problem: The saw binds or stalls. Solution: This is usually caused by a dirty or dull blade. Clean the blade with a wire brush and then sharpen it. If the blade is still binding or stalling, you may need to replace it.
Problem: The saw makes a strange noise. Solution: This could be a sign of a problem with the motor or the gears. If you hear a strange noise, stop using the saw immediately and contact DeWalt for repair.
Problem: The saw leaks oil. This is usually caused by a worn or damaged oil seal. If the saw is leaking oil, you will need to replace the oil seal.
Solution: To replace the oil seal, you will need to disassemble the saw. Once the saw is disassembled, you can remove the old oil seal and install the new one. Be sure to use the correct type of oil seal for your saw.
By following these tips, you can help to keep your DeWalt D25840K reciprocating saw in good working order and prevent common problems.
DeWalt D25840K Manual
DeWalt D25840K Chipping Hammer
Safety Information
- Read and understand all safety warnings and instructions before using this tool.
- Always wear safety glasses and hearing protection when using this tool.
- Keep your work area clean and well-lit.
- Do not use this tool in wet or damp conditions.
- Do not use this tool if it is damaged.
- Keep children and bystanders away from the work area.
- Use the correct size and type of chisel for the job.
- Do not overload the tool.
- Be aware of your surroundings and the potential for flying objects.
- Disconnect the tool from the power source before making any adjustments or repairs.
Before Use
- Inspect the tool before each use.
- Make sure that all switches operate properly.
- Check for damaged or missing parts.
- Do not use the tool if it is damaged.
Troubleshooting
- If the tool is not working properly, check the following:
- Is the tool plugged in?
- Is the switch turned on?
- Are the batteries charged?
- Is the chisel the correct size and type for the job?
- Is the tool overloaded?
Maintenance
- Keep the tool clean and free of debris.
- Inspect the tool regularly for signs of wear or damage.
- Replace worn or damaged parts immediately.
- Do not use the tool if it is damaged.
Warranty
- This tool is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase.
- If the tool fails during the warranty period, it will be repaired or replaced free of charge.
Contact Information
- For more information, please contact DeWalt customer service at:
- Phone: 1-800-433-9258
- Email: [email protected]
- Website: www.dewalt.com
Additional Information
- This tool is designed for chipping concrete, masonry, and other hard materials.
- Do not use this tool for any other purpose.
- Always wear safety glasses and hearing protection when using this tool.
- Keep your work area clean and well-lit.
- Do not use this tool in wet or damp conditions.
- Do not use this tool if it is damaged.
- Keep children and bystanders away from the work area.
- Use the correct size and type of chisel for the job.
- Do not overload the tool.
- Be aware of your surroundings and the potential for flying objects.
- Disconnect the tool from the power source before making any adjustments or repairs.
I hope this manual was helpful. Please let me know if you have any questions.

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