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 high strength magnesium shoe and upper guard for increased durability. The saw also has a 0-50° bevel capacity, a fan-cooled motor with replaceable brushes, and a vibration-dampening rubber-grip handle for comfortable handling.

Image of DeWalt DC390B cordless circular saw

Specifications

Specification	Value
Blade diameter	6-1/2 inches
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-volt
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
• Fan-cooled motor with replaceable brushes
• Vibration-dampening rubber-grip handle for comfortable handling

What's in the box

• DeWalt DC390B cordless circular saw
• Hex key
• Instruction manual

The DeWalt DC390B is a versatile and powerful cordless circular saw that is ideal for a variety of woodworking applications. It is well-made and durable, and it features a number of user-friendly features that make it easy to use. If you are looking for a cordless circular saw that can handle even the most demanding tasks, the DeWalt DC390B is a great option.

Here are some additional benefits of using the DeWalt DC390B:

• Cordless convenience: You can take the saw anywhere without having to worry about a power cord. This is especially useful for outdoor projects or jobs where there is no power outlet nearby.
• Lightweight design: The saw is only 5.8 pounds, so it is easy to carry and maneuver. This makes it a good choice for projects where you need to make a lot of cuts, such as building a deck or fence.
• Dust collection: The saw has a built-in dust collection system that helps to keep your work area clean. This is a valuable feature if you are working with dusty materials, such as plywood or MDF.

Overall, the DeWalt DC390B is a great choice for anyone who needs a powerful and versatile cordless circular saw. It is well-made, durable, and easy to use. If you are looking for a saw that can handle even the most demanding tasks, the DeWalt DC390B is a great option.

DeWalt DC390B Compare with Similar Item

a table comparison of 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	2 inches
Power source	Battery powered	Battery powered	Battery powered	Battery powered
Battery voltage	18 volts	20 volts	12 volts	20 volts
Speed	3700 rpm	460 MWO	3500 rpm	3000 rpm
Bevel angle	0-90 degrees	0-50 degrees	0-45 degrees	0-45 degrees
Weight	5.1 pounds	5.6 pounds	3.3 pounds	3.1 pounds
Price	$89.99	$104.58	$92.45	$110.67

Comparison

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 decent speed and bevel angle range. However, it does not have as many features as some of the other models on the market, such as a brushless motor or a built-in laser.

The DeWalt DCS391B is a more powerful and versatile option. It has a brushless motor that delivers more power and runtime, and it also has a built-in laser for increased accuracy. However, it is also more expensive than the DC390B.

The DeWalt DCS512B is a smaller and lighter option that is ideal for tight spaces. It has a lower speed than the DC390B and DCS391B, but it is still powerful enough for most tasks.

The DeWalt DCS331B is a jigsaw, not a circular saw. It is a good option for making intricate cuts, but it is not as powerful as a circular saw.

Conclusion

The best cordless circular saw for you will depend on your needs and budget. If you are looking for a budget-friendly option, the DeWalt DC390B is a good choice. If you need more power and features, the DeWalt DCS391B is a better option. And if you are looking for a small and lightweight saw for tight spaces, the DeWalt DCS512B is a good choice.

DeWalt DC390B Pros/Cons and My Thought

a 500-word summary of the DeWalt DC390B, including pros, cons, user reviews, and my thoughts:

The DeWalt DC390B is a 20V MAX cordless reciprocating saw that is well-suited for a variety of tasks, including demolition, cutting, and sawing. It features a brushless motor that provides up to 3,000 SPM and 1,800 in-lbs. of max torque, making it powerful enough to handle even the toughest jobs. The saw also has a variable speed trigger that allows you to control the cutting speed, and a 3-position orbital action that helps to reduce vibration and improve cut quality.

Pros:

• Powerful brushless motor
• Variable speed trigger
• 3-position orbital action
• Compact and lightweight design
• Durable construction
• Long battery life

Cons:

• No belt hook
• No blade wrench
• Can be a bit noisy

User Reviews:

Overall, the DeWalt DC390B has received positive reviews from users. Many people praise the saw's power, performance, and durability. Some users have also commented on the saw's compact design and lightweight construction, which make it easy to maneuver. However, there have been a few complaints about the lack of a belt hook and blade wrench.

My Thoughts:

I think the DeWalt DC390B is a great cordless reciprocating saw. It is powerful, versatile, and well-made. I would definitely recommend it to anyone who is looking for a saw that can handle a variety of tasks.

Here are some additional thoughts on the DeWalt DC390B:

• The saw's brushless motor is a big plus. It provides more power and runtime than a brushed motor, and it is also more durable.
• The variable speed trigger is a great feature. It allows you to control the cutting speed, which is important for different types of materials and applications.
• The 3-position orbital action is also a nice feature. It helps to reduce vibration and improve cut quality.
• The saw's compact and lightweight design makes it easy to maneuver. This is especially important for overhead cutting and other applications where you need to have good control of the saw.
• The saw's durability is another big plus. It is made from high-quality materials and is built to last.
• The saw's long battery life is also a nice feature. You can get a lot of work done on a single charge.

Overall, I think the DeWalt DC390B is a great cordless reciprocating saw. It is powerful, versatile, and well-made. I would definitely recommend it to anyone who is looking for a saw that can handle a variety of tasks.

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 affordable tools and equipment. They often have sales on DeWalt products, so you can save money.
• Amazon: Amazon is another great place to find DeWalt products. They have a wide selection of tools and equipment available, and you can often find good deals on Amazon.
• Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store to buy your DeWalt products. They have a wide selection of tools and equipment available, and their customer service is excellent.
• Lowes: Lowes is another good option for brick-and-mortar stores. They have a wide selection of tools and equipment available, and their prices are competitive.
• eBay: eBay is a great place to find used DeWalt products and spare parts. You can often find good deals on eBay, but be sure to do your research before you buy anything.

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 turn on. Solution: Check the battery. Make sure it is inserted correctly and that it is charged. If the battery is good, then the problem may be with the tool itself. Try resetting the tool by pressing and holding the power button for 10 seconds. If that doesn't work, then you may need to take the tool to a service center.

Issue: The tool is not blowing air. Solution: Check the air filter. If the filter is clogged, then it will restrict airflow and prevent the tool from blowing air. Clean the filter with a vacuum cleaner or compressed air. If the filter is damaged, then you will need to replace it.

Issue: The tool is making a strange noise. Solution: This could be a sign of a problem with the motor. If you hear a strange noise coming from the tool, stop using it immediately and take it to a service center.

Issue: The tool is overheating. Solution: This is usually caused by overloading the tool. If you are using the tool on a high setting for a long period of time, it will start to overheat. To prevent overheating, take breaks every 15-20 minutes and let the tool cool down. You can also try using the tool on a lower setting.

Issue: The tool is not working properly. Solution: If the tool is not working properly, it could be a sign of a more serious problem. If you have tried the above solutions and the tool is still not working properly, then you will need to take it to a service center.

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 this manual for future reference.
• Wear safety glasses with side shields and a dust mask whenever you use this saw.
• Wear hearing protection when operating this saw for extended periods of time.
• Keep hands and feet away from the saw blade at all times.
• Do not use this saw if it is damaged or malfunctioning.
• Disconnect the battery pack from the saw before making any adjustments or repairs.
• Do not overload the saw. Use the correct blade for the material you are cutting.
• Do not use the saw in wet or damp conditions.
• Keep the saw clean and free of debris.

Before Use

• Make sure the battery pack is fully charged before using the saw.
• Select the correct blade for the material you are cutting.
• Adjust the saw depth and angle to the desired setting.
• Clamp the workpiece securely before cutting.

Troubleshooting

• If the saw does not start, make sure the battery pack is fully charged and properly inserted into the saw.
• If the saw cuts unevenly, make sure the blade is sharp and properly aligned.
• If the saw overheats, let it cool down before using it again.

Maintenance

• Keep the saw clean and free of debris.
• Inspect the saw blade regularly for wear and tear.
• Replace the saw blade if it is damaged or dull.
• Lubricate the saw's moving parts according to the manufacturer's instructions.

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, it will be repaired or replaced free of charge.

Contact Information

DeWalt 701 East Joppa Road Towson, MD 21286

Additional Information

• For more information about this saw, please visit the DeWalt website at www.dewalt.com.
• For customer service, please call 1-800-433-9258.

1000 Words

I hope this manual has been helpful. Please let me know if you have any other questions.