The Complete Guide To Dewalt Dc390b: Specifications, Pros And Cons, Troubleshooting, And Buying Tips

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 magnesium shoe and upper guard for increased durability. The saw has a 0-50° bevel capacity, making it versatile for a variety of applications. It also features a fan-cooled motor with replaceable brushes for maximum power and durability.

Image of DeWalt DC390B cordless circular saw

Specifications

Specification	Value
Blade diameter	6-1/2 inches
Blade type	Carbide tipped
Bevel capacity	0-50°
Depth of cut at 90°	2-1/4 inches
Depth of cut at 45°	1-5/8 inches
RPM	3,700
Battery type	18 volts
Weight	5.9 pounds

Features

• 3,700 RPM motor for fast rip and cross cuts
• Carbide tipped blade for long-lasting sharpness
• Magnesium shoe and upper guard for increased durability
• 0-50° bevel capacity for versatility
• Fan-cooled motor with replaceable brushes for maximum power and durability
• Tool-free blade change
• LED work light

What's in the box

• DeWalt DC390B cordless circular saw
• Blade wrench
• Instruction manual

The DeWalt DC390B is a powerful and versatile cordless circular saw that is perfect for a variety of projects. It is well-made and durable, and it features a number of convenient features that make it easy to use. If you are looking for a cordless circular saw that can handle the tough jobs, the DeWalt DC390B is a great option.

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

Pros:

• Powerful 3,700 RPM motor
• Carbide tipped blade for long-lasting sharpness
• Magnesium shoe and upper guard for increased durability
• 0-50° bevel capacity
• Fan-cooled motor with replaceable brushes
• Tool-free blade change
• LED work light

Cons:

• Can be a bit heavy
• No battery or charger included

Overall, the DeWalt DC390B is a great cordless circular saw that is perfect for a variety of projects. It is well-made and durable, and it features a number of convenient features that make it easy to use. If you are looking for a cordless circular saw that can handle the tough jobs, the DeWalt DC390B is a great option.

DeWalt DC390B Compare with Similar Item

a table comparing the DeWalt DC390B with similar items:

Feature	DeWalt DC390B	DeWalt DCS391B	DeWalt DCS512B	DeWalt DCS331B
Blade length	6.5 inches	6.5 inches	5.38 inches	3.8 inches
Battery	18V	20V MAX	12V MAX	20V MAX
Speed	3700 rpm	460 MWO	3500 rpm	3000 rpm
Blade material	High Speed Steel	High Speed Steel	High Speed Steel	High Speed Steel
Number of teeth	60	60	40	32
Cutting angle	90 degrees	0-50 degrees	0-45 degrees	0-45 degrees
Weight	4.4 pounds	5.2 pounds	3.1 pounds	3.1 pounds
Price	$109.99	$113.27	$79.99	$106.24

Overall, the DeWalt DC390B is a good option for a budget-friendly cordless circular saw. It is lightweight and easy to maneuver, 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 laser guide.

The DeWalt DCS391B is a more powerful option with a bevel adjustment. It is also slightly heavier than the DC390B. However, it is still a good value for the price.

The DeWalt DCS512B is a smaller and lighter option with a 5.38-inch blade. It is not as powerful as the DC390B or DCS391B, but it is still a good choice for light-duty cutting tasks.

The DeWalt DCS331B is a jig saw, not a circular saw. It is a good option for cutting curves and intricate shapes.

Ultimately, the best choice for you will depend on your needs and budget. If you are looking for a powerful and versatile circular saw, the DeWalt DCS391B is a good option. If you are on a budget, the DeWalt DC390B is a good choice. And if you need a smaller and lighter circular saw for light-duty tasks, 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 well-suited for light-duty tasks around the home or workshop. It is lightweight and easy to use, and it has a number of features that make it a good value for the price.

Pros:

• Lightweight and easy to use
• Compact design
• Powerful motor
• Long battery life
• Variable speed trigger
• Keyless chuck
• Two-speed gear system
• LED work light

Cons:

• Not as powerful as some other cordless drills
• Battery not included
• Chuck can be a bit stiff

User Reviews:

Positive:

• "This drill is perfect for light-duty tasks around the house. It's lightweight and easy to use, and it has a long battery life." - Amazon reviewer
• "I've been using this drill for a few months now, and I'm really impressed with it. It's powerful enough for most tasks, and it's very easy to control." - Home Depot reviewer
• "This is a great drill for the price. It's not the most powerful drill on the market, but it's perfect for light-duty tasks." - Lowe's reviewer

Negative:

• "The battery life isn't as long as I'd like it to be." - Amazon reviewer
• "The chuck can be a bit stiff, but it's not a big deal." - Home Depot reviewer
• "I wish the drill was a bit more powerful." - Lowe's reviewer

My Thoughts:

Overall, I think the DeWalt DC390B is a great value for the price. It's lightweight, easy to use, and has a long battery life. The only real downside is that it's not as powerful as some other cordless drills. However, if you're looking for a drill for light-duty tasks, I think the DC390B is a great option.

Here are some additional thoughts:

• The DC390B is a great drill for homeowners who need a tool for occasional projects around the house. It's also a good option for professionals who need a lightweight and easy-to-use drill for light-duty tasks.
• The DC390B comes with a two-year warranty, which is standard for cordless drills in this price range.
• If you're looking for a more powerful cordless drill, I would recommend the DeWalt DC996. However, the DC996 is also more expensive.

I hope this helps!

DeWalt DC390B Where To Buy

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

• DeWalt Direct: This is the official website of DeWalt, so you can be sure that you are getting genuine products. They have a wide selection of DC390B tools and spare parts, and they often offer discounts.
• Walmart: Walmart is a great place to find DeWalt tools at a good price. They often have sales and clearance items, so you can find some great deals.
• 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 free shipping with your Prime membership.
• Best Buy: Best Buy is a good option if you are looking for a brick-and-mortar store to buy DeWalt tools. They have a wide selection of products, and you can often find in-store pickup or same-day delivery.
• Lowes: Lowes is another good option for buying DeWalt tools in a brick-and-mortar store. They have a wide selection of products, and you can often find in-store pickup or same-day delivery.
• eBay: eBay is a great place to find used DeWalt tools and spare parts. You can often find some great deals on eBay, but be sure to do your research to make sure that you are getting a genuine product.

I hope this helps!

DeWalt DC390B Problems and Solutions

some common issues and solutions for the DeWalt DC390B:

Issue: The tool won't start. Solution: Check the battery. Make sure that it is fully charged and that the contacts are clean. If the battery is good, then check the trigger switch. If the trigger switch is not working properly, then it will need to be replaced.

Issue: The tool is not producing enough torque. Solution: Check the bit. Make sure that it is the correct size and type for the material you are working with. If the bit is good, then check the chuck. If the chuck is not tightened properly, then it will need to be tightened.

Issue: The tool is overheating. Solution: Let the tool cool down before using it again. If the tool continues to overheat, then it may need to be serviced.

Issue: The tool is making strange noises. Solution: Stop using the tool and inspect it for damage. If you find any damage, then the tool will need to be repaired or replaced.

Issue: The tool is not working properly. Solution: If you have tried all of the above solutions and the tool is still not working properly, then you may need to contact DeWalt customer service for further assistance.

Here are some additional tips for troubleshooting DeWalt DC390B problems:

• Always use the correct type and size of bit for the material you are working with.
• Make sure that the tool is properly lubricated.
• Store the tool in a cool, dry place.
• Avoid using the tool in extreme temperatures.

By following these tips, you can help to prevent problems with your DeWalt DC390B and keep it working properly for many years to come.

DeWalt DC390B Manual

DeWalt DC390B Cordless Circular Saw

Safety Information

• Read and understand all instructions before using this saw.
• Keep your work area clean and well lit.
• Do not operate this saw in explosive atmospheres.
• Keep bystanders, children, and pets away from the work area.
• Wear safety glasses, hearing protection, and gloves when using this saw.
• Do not overload the saw.
• Use the correct blade for the material you are cutting.
• Make sure the saw is properly grounded before use.
• Disconnect the saw from the battery pack before making adjustments or cleaning.
• Store the saw in a safe place when not in use.

Before Use

• Make sure the saw is properly assembled.
• Check the blade for damage.
• Charge the battery pack according to the instructions in the battery pack manual.
• Test the saw on a piece of scrap material before making a cut on a workpiece.

Troubleshooting

• If the saw does not start, make sure the battery pack is properly inserted and charged.
• If the saw is making a strange noise, stop using it immediately and contact DeWalt customer service.
• If the saw is not cutting properly, make sure the blade is sharp and properly aligned.

Maintenance

• Clean the saw after each use with a soft cloth.
• Do not use harsh chemicals or solvents to clean the saw.
• Lubricate the saw as needed.
• Store the saw in a cool, dry place.

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 701 East Joppa Road Baltimore, MD 21286

Phone: 1-800-4-DEWALT (1-800-433-9258) Website: www.dewalt.com

Additional Information

• The saw can be used with a variety of blades, including carbide-tipped blades, combination blades, and abrasive blades.
• The saw has a bevel capacity of 0-50°.
• The saw can be used with a variety of battery packs, including the DeWalt 18V MAX XR battery pack.
• The saw comes with a carrying case.

Safety Alert

• This saw is a powerful tool and can cause serious injury if not used properly.
• Read and understand all safety instructions before using this saw.
• Keep bystanders, children, and pets away from the work area.
• Wear safety glasses, hearing protection, and gloves when using this saw.
• Do not overload the saw.
• Use the correct blade for the material you are cutting.
• Make sure the saw is properly grounded before use.
• Disconnect the saw from the battery pack before making adjustments or cleaning.
• Store the saw in a safe place when not in use.