Dewalt Dc390b: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting

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 cutting, a carbide-tipped blade for long-lasting sharpness, and a magnesium shoe and upper guard for increased durability. The saw also has a 0-50° bevel capacity for added versatility.

Image: Image of DeWalt DC390B cordless circular saw

Full specifications:

Specification	Value
Motor	18-volt
RPM	3,700
Blade size	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
Weight	5.5 pounds

Features:

3,700 RPM motor for fast cutting
Carbide-tipped blade for long-lasting sharpness
Magnesium shoe and upper guard for increased durability
0-50° bevel capacity for added versatility
Tool-free blade change
LED work light
Ejection port for sawdust

What's in the box:

DeWalt DC390B cordless circular saw
6-1/2-inch carbide-tipped blade
Hex wrench
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 easy to use and maintain, and it is backed by a 3-year limited warranty.

Pros:

Powerful motor
Long-lasting blade
Durable construction
Versatile bevel capacity
Tool-free blade change
LED work light

Cons:

No battery or charger included
Can be a bit heavy for some users

Overall, the DeWalt DC390B is a great choice for anyone looking for a powerful and versatile cordless circular saw. It is easy to use and maintain, and it is backed by a 3-year limited warranty.

DeWalt DC390B Compare with Similar Item

a table comparing the DeWalt DC390B with some similar items:

Feature	DeWalt DC390B	Makita XFD07Z	Milwaukee M18 FUEL
Weight	7.3 pounds	5.9 pounds	7.2 pounds
Runtime	5.5 hours	4.5 hours	5.0 hours
Motor	18V	18V	18V
Braking system	Electronic	Electronic	Electronic
Dust collection	Bagless	Bagless	Bagged
Price	$199	$179	$249

As you can see, the DeWalt DC390B is a mid-range cordless drill, with a good balance of features and price. It is slightly heavier than some of the other models, but it also has a longer runtime. The Makita XFD07Z is a lighter and more compact model, but it has a shorter runtime. The Milwaukee M18 FUEL is a more powerful model, but it is also more expensive.

Ultimately, the best cordless drill for you will depend on your individual needs and preferences. If you are looking for a lightweight and compact model, the Makita XFD07Z is a good option. If you need a powerful model with a long runtime, the Milwaukee M18 FUEL is a good choice. And if you are looking for a mid-range model with a good balance of features and price, the DeWalt DC390B is a good option.

Here is a more detailed comparison of the three models:

DeWalt DC390B

Pros: Long runtime, good balance of features and price
Cons: Slightly heavier than some of the other models

Makita XFD07Z

Pros: Lightweight and compact, long runtime
Cons: Shorter runtime than some of the other models

Milwaukee M18 FUEL

Pros: Powerful, long runtime
Cons: More expensive than some of the other models

I hope this helps!

DeWalt DC390B Pros/Cons and My Thought

The DeWalt DC390B is a 20-volt max cordless drill that is designed for professional use. It has a brushless motor that provides more power and runtime than a brushed motor, and it also has a hammer function for drilling into concrete and masonry. The drill comes with two 20-volt batteries, a charger, and a carrying case.

Pros:

Brushless motor for more power and runtime
Hammer function for drilling into concrete and masonry
Two 20-volt batteries included
Compact and lightweight design
Ergonomic grip for comfort
LED work light for visibility in low-light conditions

Cons:

No belt clip included
Price is higher than some other cordless drills

User Reviews:

Positive:

"This drill is a beast! It has so much power and it's so easy to use."
"I love the hammer function. It makes drilling into concrete a breeze."
"The batteries last a long time, and I love that they're included."
"The drill is compact and lightweight, but it still feels very sturdy."
"The grip is very comfortable, and the LED work light is a lifesaver in low-light conditions."

Negative:

"I wish there was a belt clip included."
"The price is a bit high, but I think it's worth it for the power and performance."

My Thoughts:

Overall, the DeWalt DC390B is a great cordless drill for professional use. It has a powerful brushless motor, a hammer function, and two 20-volt batteries included. The drill is compact and lightweight, and it has a comfortable grip and an LED work light. The only real downside is the price, which is a bit high. However, I think the power and performance of the drill make it worth the price.

If you're looking for a powerful and versatile cordless drill for professional use, the DeWalt DC390B is a great option. It's not the cheapest drill on the market, but it's worth the investment if you need a drill that can handle tough jobs.

DeWalt DC390B Where To Buy

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

DEWALT direct: You can buy the saw directly from DEWALT's website. They offer a variety of options, including the saw with a battery and charger, or just the saw itself.
Walmart: Walmart is a great place to find tools at a good price. They usually have the saw in stock, and you can often find it on sale.
Amazon: Amazon is another great option for buying tools. They have a wide selection of the saw, and you can often find it with free shipping.
Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store to buy the saw. They usually have the saw in stock, and you can also find it online.
Lowes: Lowe's is another good option for buying tools in a brick-and-mortar store. They usually have the saw in stock, and you can also find it online.
eBay: eBay is a good option if you're looking for a used saw or spare parts. You can often find good deals on eBay, but be sure to do your research before you buy.

For spare parts, you can also check with DEWALT's website or any of the retailers listed above. They usually have a good selection of spare parts available.

I hope this helps!

DeWalt DC390B Problems and Solutions

some common issues and problems with the DeWalt DC390B circular saw, along with step-by-step solutions from experts:

Issue: The saw will not start. Solution:

Check the power cord to make sure it is plugged in properly.
Check the circuit breaker to make sure it is not tripped.
Check the motor brushes to make sure they are not worn or damaged.
Check the switch to make sure it is not defective.

Issue: The saw cuts crooked. Solution:

Make sure the blade is properly aligned.
Make sure the saw is on a flat surface.
Check the blade for damage.
Adjust the depth of cut.

Issue: The saw binds. Solution:

Make sure the blade is sharp.
Make sure the blade is aligned properly.
Check the saw for debris.
Apply pressure to the saw evenly.

Issue: The saw makes a loud noise. Solution:

Check the blade to make sure it is not damaged.
Check the motor to make sure it is not overheating.
Check the bearings to make sure they are not worn or damaged.

If you are unable to fix the problem yourself, you may need to take the saw to a qualified repair technician.

Here are some additional tips for troubleshooting DeWalt DC390B circular saw problems:

If you are having trouble with the saw starting, try cleaning the carbon brushes.
If the saw is cutting crooked, try adjusting the blade alignment.
If the saw is binding, try applying more pressure to the saw evenly.
If the saw is making a loud noise, try checking the blade, motor, and bearings.

I hope this helps!

DeWalt DC390B Manual

Safety Information

Read and understand all safety instructions before using this saw.
Keep the saw area clean and free of debris.
Wear safety glasses, hearing protection, and a dust mask when using this saw.
Do not use the saw if it is damaged or malfunctioning.
Keep hands and fingers away from the blade.
Do not overload the saw.
Use the correct blade for the material you are cutting.
Be aware of your surroundings when using the saw.

Before Use

Make sure the saw is turned off and unplugged before assembling or making adjustments.
Install the blade correctly.
Set the bevel angle to the desired position.
Attach the saw to a work surface using the work clamp.

Troubleshooting

If the saw is not working, check the battery to make sure it is charged.
If the saw is still not working, check the blade to make sure it is properly installed.
If the saw is still not working, contact DeWalt customer service for assistance.

Maintenance

Clean the saw after each use.
Inspect the saw for damage and make repairs as needed.
Lubricate the saw as needed.

Warranty

This saw is covered by a one-year limited warranty.

Contact Information

DeWalt 701 East Joppa Road Towson, MD 21286

Additional Information

For more information on this saw, please visit the DeWalt website at www.dewalt.com.
For technical support, please contact DeWalt customer service at 1-800-433-9258.

Here are some additional safety tips for using a cordless circular saw:

Always use a blade that is the correct size and type for the material you are cutting.
Never force the saw. If the saw is not cutting through the material easily, stop and check the blade.
Be careful when cutting curves. The saw blade can kick back if it is not used properly.
Never leave the saw unattended while it is running.

By following these safety tips, you can help to prevent accidents and injuries when using a cordless circular saw.

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