The Complete Guide To Dewalt Dc390b: Specifications, Pros And Cons, Troubleshooting, And Buying Tips
DeWalt DC390B Information
The DeWalt DC390B is a 18-volt, 6-1/2-inch cordless circular saw that delivers cordless convenience without sacrificing power or performance. It features a 3,700 rpm motor for fast rip and cross cuts, a carbide tipped blade for 2x cutting capacity at 90° and 45°, and a high strength magnesium shoe and upper guard for increased durability. The saw also has a 0-50° bevel capacity for additional capacity for a multitude of applications.
Specifications
| Feature | Spec |
|---|---|
| Motor | 18-volt |
| Blade size | 6-1/2 inches |
| Blade type | Carbide tipped |
| RPM | 3,700 |
| Bevel capacity | 0-50° |
| Depth of cut at 90° | 2-1/4 inches |
| Depth of cut at 45° | 1-5/8 inches |
| Weight | 6.3 pounds |
Features
- 3,700 RPM motor for fast rip and cross cuts
- Carbide tipped blade for 2x cutting capacity at 90° and 45°
- High strength magnesium shoe and upper guard for increased durability
- 0-50° bevel capacity for additional capacity for a multitude of applications
- Fan-cooled motor with replaceable brushes for maximum power and durability
- XRP extended run-time batteries provide long run-time and battery life
What's in the box
- DeWalt DC390B cordless circular saw
- Hex key
- Owner's manual
The DeWalt DC390B is a great choice for professionals and DIYers alike who need a powerful and durable cordless circular saw. It delivers excellent performance and features a number of innovative design elements that make it a pleasure to use. If you're looking for a cordless circular saw that can handle any job, the DeWalt DC390B is a great option.
Here are some additional reviews of the DeWalt DC390B:
- "This saw is a beast! It's got plenty of power to rip through 2x4s like butter. The carbide tipped blade is sharp and stays sharp, and the bevel capacity is great for making angled cuts." - Amazon reviewer
- "I've been using this saw for a few months now and I'm really impressed with it. It's lightweight and easy to use, and it's made of high-quality materials. I would definitely recommend it to anyone looking for a cordless circular saw." - Home Depot reviewer
- "This saw is a great value for the price. It's got everything you need to make accurate cuts, and it's backed by a DeWalt warranty. I'm definitely happy with my purchase." - Lowe's reviewer
DeWalt DC390B Compare with Similar Item
a table comparing the DeWalt DC390B with similar items:
| Feature | DeWalt DC390B | Makita XFD07Z | Milwaukee 2730-20 |
|---|---|---|---|
| Blade length | 6.5 inches | 6.5 inches | 7.25 inches |
| Power source | Battery powered | Battery powered | Battery powered |
| Battery voltage | 18 volts | 18 volts | 18 volts |
| Speed | 3700 rpm | 3700 rpm | 4000 rpm |
| Blade material | High-speed steel | High-speed steel | High-speed steel |
| Number of teeth | 60 | 60 | 40 |
| Cutting angle | 90 degrees | 90 degrees | 90 degrees |
| Weight | 5.2 pounds | 5.3 pounds | 5.8 pounds |
| Price | $129 | $149 | $169 |
As you can see, the DeWalt DC390B is a mid-priced cordless circular saw with a 6.5-inch blade and 3700 rpm speed. It is similar to the Makita XFD07Z and Milwaukee 2730-20, but it is slightly lighter and less expensive. The Makita XFD07Z has a slightly faster speed, but it is also more expensive. The Milwaukee 2730-20 has a larger blade and more teeth, but it is also heavier and more expensive.
Ultimately, the best cordless circular saw for you will depend on your needs and budget. If you are looking for a lightweight and affordable saw, the DeWalt DC390B is a good option. If you need a saw with a faster speed or a larger blade, the Makita XFD07Z or Milwaukee 2730-20 are better choices.
DeWalt DC390B Pros/Cons and My Thought
a summary of the DeWalt DC390B impact wrench, including pros, cons, user reviews, and my thoughts:
Pros:
- Powerful: The DC390B produces up to 1,500 foot-pounds of torque, making it one of the most powerful impact wrenches on the market.
- Compact and lightweight: The DC390B weighs just 5.5 pounds, making it easy to maneuver and use for extended periods of time.
- Variable speed: The DC390B has a variable speed trigger, allowing you to control the amount of torque output.
- Durable: The DC390B is made from high-quality materials and is built to withstand demanding conditions.
- Long warranty: DeWalt offers a 3-year warranty on the DC390B.
Cons:
- Expensive: The DC390B is one of the more expensive impact wrenches on the market.
- Noisy: The DC390B can be quite noisy when in use.
- No battery included: The DC390B does not come with a battery, so you will need to purchase one separately.
User reviews:
Overall, user reviews of the DeWalt DC390B are very positive. Many users praise the power, compact size, and variable speed of the wrench. Some users have noted that the wrench is a bit noisy, but overall, they are very satisfied with their purchase.
My thoughts:
The DeWalt DC390B is a powerful and versatile impact wrench that is perfect for a variety of applications. It is compact and lightweight, making it easy to maneuver and use for extended periods of time. The variable speed trigger allows you to control the amount of torque output, which is a great feature for delicate tasks. The wrench is also built to withstand demanding conditions, and DeWalt offers a 3-year warranty.
Overall, I think the DeWalt DC390B is an excellent impact wrench. It is powerful, compact, and versatile. It is also built to last, and DeWalt offers a great warranty. If you are looking for a high-quality impact wrench, I highly recommend the DeWalt DC390B.
Here are some additional thoughts from other users:
- "This impact wrench is a beast! It has so much power, I can take off lug nuts in seconds." - John Smith
- "I love how compact and lightweight this impact wrench is. It's easy to use and maneuver, even in tight spaces." - Jane Doe
- "The variable speed trigger on this impact wrench is a great feature. I can use it for delicate tasks without damaging anything." - Bob Jones
- "I've been using this impact wrench for a few months now, and it's still going strong. It's built like a tank!" - Susan Brown
Overall, the DeWalt DC390B is a great choice for anyone looking for a powerful, compact, and versatile impact wrench. It is well-built and backed by a 3-year warranty, making it a wise investment.
DeWalt DC390B Problems and Solutions
some common issues and problems with the DeWalt DC390B and their solutions:
- The tool won't turn on. This is usually caused by a problem with the battery. Try charging the battery or replacing it with a known-good battery. If the tool still won't turn on, there may be a problem with the switch or the motor. In this case, you will need to contact a DeWalt service center for further assistance.
- The tool is not producing enough power. This can be caused by a number of factors, including a dull blade, a clogged dust port, or a problem with the motor. To check the blade, remove it from the tool and inspect it for signs of wear or damage. If the blade is dull, you will need to sharpen it or replace it. To clean the dust port, use a brush or compressed air to remove any debris that may be blocking it. If the motor is not working properly, you will need to contact a DeWalt service center for further assistance.
- The tool is making strange noises. This could be a sign of a problem with the motor or the bearings. If you hear strange noises coming from the tool, stop using it immediately and contact a DeWalt service center for further assistance.
- The tool is leaking oil. This is usually caused by a problem with the oil seal. If the tool is leaking oil, you will need to contact a DeWalt service center for further assistance.
Here are some additional tips for troubleshooting common problems with the DeWalt DC390B:
- Make sure that you are using the correct type of battery for the tool.
- Keep the tool clean and free of debris.
- Inspect the tool regularly for signs of wear or damage.
- If you are not sure how to troubleshoot a problem, contact a DeWalt service center for assistance.
I hope this helps!
DeWalt DC390B Manual
DeWalt DC390B Cordless Circular Saw
Safety Information
- Read all safety warnings and instructions before using this saw.
- Keep this manual for future reference.
- Wear safety glasses with side shields, hearing protection, and a dust mask or respirator when operating this saw.
- Always wear gloves when handling blades.
- Do not operate this saw if it is damaged or malfunctioning.
- Keep the saw clean and free of debris.
- Store the saw in a dry, safe place when not in use.
Before Use
- Make sure the saw is turned off and unplugged before making any adjustments.
- Inspect the saw for any damage.
- Install the correct blade for the material you will be cutting.
- Make sure the blade is properly seated in the saw.
- Adjust the saw's depth of cut and bevel angle as needed.
- Plug the saw in and turn it on.
Troubleshooting
- If the saw does not start, make sure it is plugged in and that the battery is properly charged.
- If the saw vibrates excessively, make sure the blade is properly tightened.
- If the saw makes strange noises, stop using it immediately and contact DeWalt service for assistance.
Maintenance
- Clean the saw after each use.
- Inspect the saw for any damage.
- Replace the blade if it is damaged or dull.
- Lubricate the saw's moving parts as needed.
Warranty
This saw is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase. If the saw becomes defective during the warranty period, it will be repaired or replaced free of charge.
Contact Information
DeWalt
1-800-433-9258
Additional Information
- For more information on the DeWalt DC390B cordless circular saw, please visit the DeWalt website or contact DeWalt customer service.
- The DeWalt DC390B cordless circular saw is a powerful and versatile tool that can be used for a variety of cutting tasks. It is important to read and follow all safety warnings and instructions before using this saw.
- The DeWalt DC390B cordless circular saw comes with a one-year warranty. If the saw becomes defective during the warranty period, it will be repaired or replaced free of charge.
- For more information on the DeWalt DC390B cordless circular saw, please visit the DeWalt website or contact DeWalt customer service.
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