Dewalt Dc390b: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

DeWalt DC390B Information

The DeWalt DC390B is a 6-1/2-inch cordless circular saw that is powered by an 18-volt battery. It features a 3,700 RPM motor for fast rip and cross cuts, and a carbide tipped blade for long-lasting sharpness. The saw also has a high-strength magnesium shoe and upper guard for increased durability, and a 0-50° bevel capacity for added versatility.

Image of DeWalt DC390B cordless circular saw

Specifications

  • Motor: 18-volt
  • RPM: 3,700
  • Blade diameter: 6-1/2 inches
  • Depth of cut at 90°: 2-1/4 inches
  • Depth of cut at 45°: 1-5/8 inches
  • Bevel capacity: 0-50°
  • Weight: 5.8 pounds

Features

  • 3,700 RPM motor for fast rip and cross cuts
  • Carbide tipped blade for long-lasting sharpness
  • High-strength magnesium shoe and upper guard for increased durability
  • 0-50° bevel capacity for added versatility
  • 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
  • Blade wrench
  • Hex key
  • Owner's manual

The DeWalt DC390B is a versatile and powerful cordless circular saw that is ideal for a variety of woodworking applications. It is lightweight and easy to use, and it features a number of durability features that make it a great choice for professional and DIY users alike.

Here are some additional benefits of the DeWalt DC390B:

  • The saw is compatible with a wide range of DeWalt 18-volt batteries, so you can choose the battery that best suits your needs.
  • The saw has a built-in LED work light that provides illumination in low-light conditions.
  • The saw's dust blower helps to keep your work area clean.

Overall, the DeWalt DC390B is a great choice for anyone looking for a powerful and versatile cordless circular saw. It is well-made, easy to use, and has a number of features that make it a great value for the price.

DeWalt DC390B Compare with Similar Item

a table comparing the DeWalt DC390B with similar items:

FeatureDeWalt DC390BDeWalt DCS565BDeWalt DCS391BDeWalt DCS570B
Blade size6.5 inches6.5 inches6.5 inches7.25 inches
Battery18V20V MAX20V MAX20V MAX
Max RPM3700370037005200
Bevel capacity57 degrees57 degrees57 degrees57 degrees
Weight5.8 pounds5.9 pounds5.7 pounds6.7 pounds
Price$129$139$149$169

Comparison

The DeWalt DC390B is a great cordless circular saw for the price. It's lightweight and easy to maneuver, and it has a powerful motor that can handle most cutting tasks. However, it's not the most powerful saw on the market, and it doesn't have a brake to stop the blade quickly.

The DeWalt DCS565B is a newer model that has a few advantages over the DC390B. It's more powerful, it has a brake, and it comes with a longer battery life. However, it's also more expensive.

The DeWalt DCS391B is another great option if you're looking for a cordless circular saw. It's similar to the DC390B in terms of power and features, but it's a bit lighter and more compact.

The DeWalt DCS570B is the most powerful cordless circular saw in this comparison. It has a powerful motor and a long battery life, but it's also the heaviest saw.

Which one should you buy?

The best saw for you will depend on your needs and budget. If you're looking for a lightweight and affordable saw, the DeWalt DC390B is a great option. If you need a more powerful saw with a brake, the DeWalt DCS565B is a good choice. And if you need the most powerful saw possible, the DeWalt DCS570B is the way to go.

Ultimately, the best way to decide which saw is right for you is to try them out in person. Go to your local hardware store and see how they feel in your hand. Cut some wood with each one to see how they perform. And then make your decision based on your own needs and preferences.

DeWalt DC390B Pros/Cons and My Thought

The DeWalt DC390B is a 12-volt cordless drill that is well-suited for a variety of tasks, including light-duty drilling, driving screws, and demolition. It is powered by a 2.0Ah lithium-ion battery that provides up to 25% more runtime than NiCd batteries. The drill has a 2-speed transmission with a range of 0-550 and 0-1,700 RPM, making it suitable for a variety of applications. It also features a 30-position clutch that allows for precise control of torque.

Pros:

  • Powerful 12-volt motor
  • Long runtime with 2.0Ah lithium-ion battery
  • 2-speed transmission with 0-550 and 0-1,700 RPM
  • 30-position clutch for precise torque control
  • Lightweight and compact design
  • Comfortable grip
  • Durable construction

Cons:

  • No belt hook
  • No keyless chuck
  • Battery not included

User Reviews:

Positive:

  • "This drill is great for light-duty tasks. It's powerful enough to drill through wood and drywall, and it's easy to control. The battery life is also very good." - Amazon reviewer
  • "I've been using this drill for a few months now, and I'm really happy with it. It's perfect for small projects around the house, and it's very easy to use. The battery life is also great." - Home Depot reviewer

Negative:

  • "The battery doesn't last as long as I would like. I wish it came with a belt hook." - Amazon reviewer
  • "The chuck is a little difficult to tighten. I wish it was keyless." - Home Depot reviewer

My Thoughts:

Overall, I think the DeWalt DC390B is a great drill for the price. It's powerful, easy to use, and has a long battery life. The only real downside is that it doesn't come with a belt hook or a keyless chuck. However, those are minor complaints, and I would still recommend this drill to anyone looking for a reliable cordless drill for light-duty tasks.

Here are some additional thoughts:

  • The DC390B is a great option for people who need a drill for occasional use. It's not as powerful as some of the higher-end drills on the market, but it's more than powerful enough for most people's needs.
  • The 2-speed transmission is a nice feature that allows you to adjust the speed of the drill to the task at hand. This is especially helpful when you're drilling into different materials.
  • The 30-position clutch is another great feature that allows you to control the amount of torque that is applied. This is important for preventing the drill from stripping screws or damaging materials.
  • The DC390B is lightweight and compact, which makes it easy to carry and use. This is a big plus if you're going to be using the drill in tight spaces.

Overall, I think the DeWalt DC390B is a great value for the price. It's a powerful, easy-to-use drill that is perfect for light-duty tasks. I would definitely recommend it to anyone looking for a reliable cordless drill.

DeWalt DC390B Where To Buy

some places where you can buy the DeWalt DC390B and spare parts:

  • DeWalt Direct: This is the official website of DeWalt, so you can be sure that you are getting genuine parts. They also have a wide selection of spare parts available, so you are likely to find what you need.
  • Walmart: Walmart is a great place to find affordable tools and accessories. They often have sales on DeWalt products, so you can get a good deal.
  • Amazon: Amazon is another great option for finding DeWalt products. They have a wide selection of tools and accessories, and you can often find them at a discounted price.
  • Best Buy: Best Buy is a good place to buy DeWalt products if you want to be able to see and touch them before you buy them. They also have a good selection of spare parts available.
  • Lowes: Lowes is a home improvement store that sells a variety of tools and accessories, including DeWalt products. They often have sales on DeWalt products, so you can get a good deal.
  • eBay: eBay is a great place to find used DeWalt products and spare parts. You can often find them at a fraction of the price of new products.

I hope this helps!

DeWalt DC390B Problems and Solutions

some common issues and problems with the DeWalt DC390B and their solutions:

Issue: The tool won't start. Solution: Check the battery to make sure it is charged. If the battery is charged, try a different battery. If the tool still won't start, there may be a problem with the motor. Contact DeWalt customer service for assistance.

Issue: The tool is overheating. Solution: Let the tool cool down before using it again. If the tool continues to overheat, there may be a problem with the motor. Contact DeWalt customer service for assistance.

Issue: The tool is not driving screws properly. Solution: Check the bit to make sure it is the correct size and type for the screws you are using. If the bit is the correct size and type, try a different bit. If the tool still is not driving screws properly, there may be a problem with the chuck. Contact DeWalt customer service for assistance.

Issue: The tool is making a strange noise. Solution: Stop using the tool immediately. There may be a problem with the motor or another internal component. Contact DeWalt customer service for assistance.

Issue: The tool is leaking oil. Solution: Stop using the tool immediately. There may be a problem with the oil seal. Contact DeWalt customer service for assistance.

Issue: The tool is not working properly. Solution: If you are experiencing any other problems with your DeWalt DC390B, please contact DeWalt customer service for assistance. They will be able to help you troubleshoot the problem and determine the best course of action.

Here are some additional tips for preventing problems with your DeWalt DC390B:

  • Always use the correct size and type of bit for the screws you are using.
  • Do not overload the tool.
  • Allow the tool to cool down before using it again after it has been overheating.
  • Keep the tool clean and free of debris.
  • Store the tool in a cool, dry place.

By following these tips, you can help to extend the life of your DeWalt DC390B and prevent problems from occurring.

DeWalt DC390B Manual

Safety Information

  • Read and understand all instructions before using this saw.
  • Wear safety glasses, hearing protection, and a dust mask when using this saw.
  • Keep hands and fingers away from the saw blade.
  • Do not use the saw if it is damaged.
  • Do not use the saw in wet or dusty conditions.
  • Keep the saw clean and free of debris.
  • Disconnect the saw from the battery pack before making any adjustments or repairs.

Before Use

  • Inspect the saw blade for damage.
  • Make sure the saw is properly assembled.
  • Charge the battery pack.
  • Select the appropriate blade for the material you are cutting.

Troubleshooting

  • If the saw is not working, check the battery pack to make sure it is charged.
  • If the saw is still not working, check the saw blade to make sure it is sharp and properly aligned.
  • If the saw is still not working, contact DeWalt customer service.

Maintenance

  • Keep the saw clean and free of debris.
  • Inspect the saw blade for damage and replace it as needed.
  • Lubricate the saw as instructed in the owner's manual.

Warranty

This saw is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the saw becomes defective during the warranty period, DeWalt will repair or replace it at no charge.

Contact Information

DeWalt 701 East Joppa Road Towson, MD 21286 1-800-433-9258 www.dewalt.com

Additional Information

  • For more information on this saw, please refer to the owner's manual.
  • DeWalt offers a variety of accessories for this saw, including saw blades, dust bags, and carrying cases.
  • DeWalt also offers a variety of training courses on how to use this saw safely and effectively.

Thank you for choosing DeWalt!

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