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, a carbide tipped blade for long-lasting sharpness, and a high-strength magnesium shoe and upper guard for increased durability. The saw also has a 0-50° bevel capacity for added versatility, and a fan-cooled motor with replaceable brushes for maximum power and durability.

Image of DeWalt DC390B cordless circular saw

Specifications

• Motor: 18-volt
• RPM: 3,700
• Blade diameter: 6-1/2 inches
• Blade arbor: 5/8 inches
• Depth of cut at 90°: 2-1/4 inches
• Depth of cut at 45°: 1-5/8 inches
• Bevel capacity: 0-50°
• Weight: 6.4 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
• Dust blower for clean cuts
• Trigger lock for added safety
• Integrated rafter hook for easy storage

What's in the box

• DeWalt DC390B cordless circular saw
• 6-1/2-inch carbide tipped blade
• Hex wrench
• Instruction manual

The DeWalt DC390B is a powerful and versatile cordless circular saw that is perfect for a variety of applications. It is ideal for cutting wood, plywood, and other materials. The saw is also lightweight and easy to use, making it a great choice for both professional and DIY users.

Here are some additional pros and cons of the DeWalt DC390B:

Pros:

• Powerful 18-volt motor
• Fast rip and cross cuts
• Long-lasting carbide tipped blade
• High-strength magnesium shoe and upper guard
• 0-50° bevel capacity
• Fan-cooled motor with replaceable brushes
• Dust blower for clean cuts
• Trigger lock for added safety
• Integrated rafter hook for easy storage

Cons:

• Can be a bit heavy for some users
• Not as powerful as some corded circular saws
• Bevel adjustment can be a bit stiff

Overall, the DeWalt DC390B is a great cordless circular saw that offers a good balance of power, performance, and features. It is a good choice for both professional and DIY users who are looking for a reliable and versatile saw.

DeWalt DC390B Compare with Similar Item

a table comparing the DeWalt DC390B with similar items:

Feature	DeWalt DC390B	DeWalt DCS391B	DeWalt DCS512B	DeWalt DCS331M1
Blade length	6.5 inches	6.5 inches	5.38 inches	3.25 inches
Power source	Battery powered	Battery powered	Battery powered	Cordless
Speed	3700 rpm	460 MWO	3500 rpm	3000 rpm
Blade material	High Speed Steel	High Speed Steel	High Speed Steel	Bi-metal
Number of teeth	40	40	40	24
Cutting angle	90 degrees	0-50 degrees	0-45 degrees	0-45 degrees
Weight	4.8 pounds	5.3 pounds	3.3 pounds	3.1 pounds
Price	$109.99	$118.99	$92.95	$299.95

Overall, the DeWalt DC390B is a good option for a budget-friendly cordless circular saw. It is lightweight and maneuverable, and it has a powerful motor that can handle most cutting tasks. However, it does not have the same features as some of the more expensive models, such as a bevel adjustment or a variable speed setting.

The DeWalt DCS391B is a more expensive option, but it offers a number of features that the DC390B does not, including a bevel adjustment, a variable speed setting, and a longer battery life.

The DeWalt DCS512B is the smallest and lightest of the three saws, making it a good option for those who need a compact saw for small projects. However, it is also the least powerful of the three saws.

The DeWalt DCS331M1 is a cordless jig saw, which means that it is designed for more intricate cutting tasks. It is not as powerful as the circular saws, but it is more versatile.

Ultimately, the best saw for you will depend on your needs and budget. If you are looking for a budget-friendly saw that is lightweight and maneuverable, the DeWalt DC390B is a good option. If you need a saw with more features, such as a bevel adjustment or a variable speed setting, the DeWalt DCS391B is a better choice. And if you need a compact saw for small projects, the DeWalt DCS512B is a good option.

DeWalt DC390B Pros/Cons and My Thought

The DeWalt DC390B is a 12-volt cordless drill that is designed for light-duty to medium-duty tasks. It features a brushless motor that provides more power and runtime than a brushed motor. The drill also has a 2-speed transmission that allows you to choose the right speed for the task at hand.

Pros:

• Brushless motor for more power and runtime
• 2-speed transmission for versatility
• Compact and lightweight design
• Ergonomic grip for comfort
• LED work light for illumination
• Keyless chuck for easy bit changes

Cons:

• No belt clip
• No battery level indicator
• No carrying case

User reviews:

Positive:

• "This drill is great for light-duty tasks around the house. It's powerful enough to drill through wood and plastic, but it's not too heavy or bulky."
• "I love the 2-speed transmission. It's perfect for when I need to drill a pilot hole or drive a screw."
• "The ergonomic grip is really comfortable, even after using the drill for a long time."
• "The LED work light is a lifesaver when I'm working in dark places."

Negative:

• "I wish it had a belt clip so I could keep it handy while I'm working."
• "It would be nice if there was a battery level indicator so I know how much power is left."
• "I would have liked a carrying case to keep the drill and accessories organized."

My thoughts:

Overall, the DeWalt DC390B is a great drill for light-duty to medium-duty tasks. It's powerful, versatile, and comfortable to use. However, it does lack some features that would be nice to have, such as a belt clip and a battery level indicator.

If you're looking for a drill for basic home improvement projects, the DeWalt DC390B is a great option. It's powerful enough to get the job done, but it's not too heavy or bulky. And the ergonomic grip makes it comfortable to use for long periods of time.

However, if you need a drill for more demanding tasks, you may want to consider a more powerful model with more features.

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're getting genuine parts. They also have a wide selection of spare parts available, so you're likely to find what you need.
• Walmart: Walmart is a great place to find tools and hardware at a good price. They often have sales and promotions, so you can get a good deal on the DeWalt DC390B.
• Amazon: Amazon is another great option for finding tools and hardware. They have a wide selection of products available, and you can often find the DeWalt DC390B at a discounted price.
• Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store where you can buy the DeWalt DC390B. They have a wide selection of tools and hardware available, and you can often find the DeWalt DC390B on sale.
• Lowe's: Lowe's is another good option for finding a brick-and-mortar store where you can buy the DeWalt DC390B. They have a wide selection of tools and hardware available, and you can often find the DeWalt DC390B on sale.
• eBay: eBay is a great place to find used tools and hardware, including spare parts for the DeWalt DC390B. You can often find good deals on used parts on eBay.

I hope this helps!

DeWalt DC390B Problems and Solutions

The DeWalt DC390B is a cordless drill that is known for its power and durability. However, like any tool, it can experience some common problems. Here are some of the most common issues and how to fix them:

• The drill won't turn on. This is usually caused by a dead battery. To fix this, simply insert a fresh battery and try again. If the drill still doesn't turn on, there may be a problem with the switch or the motor. In this case, you will need to take the drill to a qualified technician for repairs.
• The drill is not drilling as fast as it used to. This is usually caused by a clogged bit. To fix this, remove the bit and clean it with a wire brush. If the bit is still clogged, you may need to replace it.
• The drill is smoking. This is a serious problem and should not be ignored. Smoking can be a sign of a malfunctioning motor or a short circuit. If the drill is smoking, immediately unplug it and take it to a qualified technician for repairs.

Here are some additional tips to help prevent problems with your DeWalt DC390B:

• Always use the correct size bit for the job. Using a bit that is too small or too large can damage the drill and the bit.
• Don't overload the drill. If you're trying to drill through a particularly tough material, take breaks to let the drill cool down.
• Store the drill in a cool, dry place. Extreme temperatures and moisture can damage the drill's internal components.

By following these tips, you can help keep your DeWalt DC390B in good working condition for years to come.

Here are some additional step-by-step instructions for fixing some of the common problems with the DeWalt DC390B:

• To fix a dead battery, remove the battery from the drill and insert a fresh battery. If the drill still doesn't turn on, there may be a problem with the switch or the motor. In this case, you will need to take the drill to a qualified technician for repairs.
• To clean a clogged bit, remove the bit from the drill and use a wire brush to clean away any debris. If the bit is still clogged, you may need to replace it.
• To fix a smoking drill, immediately unplug the drill and take it to a qualified technician for repairs. Do not attempt to use the drill until it has been repaired.

I hope this helps!

DeWalt DC390B Manual

DeWalt DC390B Cordless Circular Saw

Safety Information

• Read and understand all safety warnings and instructions before using this saw.
• Keep your work area clean and well-lit.
• Do not operate this saw in wet or damp conditions.
• Wear safety glasses and other personal protective equipment (PPE) when operating this saw.
• Make sure the saw is properly grounded before use.
• Do not overload the saw.
• Keep your hands away from the blade.
• Do not use the saw if it is damaged.
• Disconnect the saw from the power source before making any adjustments or repairs.

Before Use

• Make sure the saw is properly assembled.
• Install the correct blade for the type of cutting you will be doing.
• Adjust the saw depth and angle to the desired settings.
• Make sure the saw is in good working condition.

Troubleshooting

• If the saw is not working, check the battery to make sure it is properly charged.
• If the saw is still not working, check the electrical connections.
• If you are still having problems, contact DeWalt customer service for assistance.

Maintenance

• Clean the saw after each use.
• Inspect the saw for wear and tear.
• Replace any worn or damaged parts.
• Store the saw in a clean, dry place.

Warranty

• This saw is covered by a one-year limited warranty.
• For more information on the warranty, please visit the DeWalt website.

Contact Information

• DeWalt Customer Service
• 1-800-433-9258
• www.dewalt.com

Additional Information

• For more information on the DeWalt DC390B cordless circular saw, please visit the DeWalt website.

Safety Tips

• Always wear safety glasses and other PPE when operating this saw.
• Make sure the saw is properly grounded before use.
• Do not overload the saw.
• Keep your hands away from the blade.
• Do not use the saw if it is damaged.
• Disconnect the saw from the power source before making any adjustments or repairs.

Storage

• Store the saw in a clean, dry place.
• Keep the saw out of reach of children.

Disposal

• Dispose of the saw in accordance with local regulations.

Thank you for choosing DeWalt!