Dewalt D28421: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting

DeWalt D28421 Information

The DeWalt D28421 is a 2300-watt, 230mm angle grinder that is designed for heavy-duty cutting and grinding applications. It features a powerful motor that delivers up to 6500 RPM, making it ideal for cutting through metal, concrete, and masonry. The D28421 also has a number of features that make it comfortable and easy to use, including a vibration-reducing handle, a dust shroud, and a tool-free guard adjustment system.

Image of DeWalt D28421 angle grinder

Full specifications of DeWalt D28421 angle grinder

Feature	Specification
Motor power	2300 watts
Disc diameter	230mm
No-load speed	0-6500 RPM
Vibration reduction	Yes
Dust shroud	Yes
Tool-free guard adjustment	Yes
Weight	5.3kg

Features of DeWalt D28421 angle grinder

• Powerful 2300-watt motor delivers up to 6500 RPM for fast cutting and grinding
• Vibration-reducing handle minimizes fatigue and discomfort
• Dust shroud helps to keep the work area clean
• Tool-free guard adjustment system makes it easy to change the guard quickly and easily
• Durable construction for long-lasting performance

What's in the box

• DeWalt D28421 angle grinder
• 1 x 230mm diamond cutting disc
• 1 x 230mm abrasive cutting disc
• Hex wrench
• Allen wrench
• Operator's manual

The DeWalt D28421 is a powerful and versatile angle grinder that is ideal for a wide range of heavy-duty cutting and grinding applications. It is well-made and features a number of ergonomic and safety features that make it comfortable and easy to use. If you are looking for a powerful and reliable angle grinder for professional use, the DeWalt D28421 is a great option.

DeWalt D28421 Compare with Similar Item

a table comparing the DeWalt D28421 with three similar items:

Feature	DeWalt D28421	Makita XFD10Z	Milwaukee 2725-20
Voltage	20V Max	18V	18V
Max torque	450 in-lbs	400 in-lbs	400 in-lbs
Chuck size	1/2 in.	1/2 in.	1/2 in.
Speed range	0-550/0-2,000 RPM	0-500/0-2,000 RPM	0-500/0-2,000 RPM
Weight	4.8 lbs	4.1 lbs	4.7 lbs
Price	$229	$299	$249

As you can see, the DeWalt D28421 is a very capable impact wrench, with a high max torque and a wide speed range. It is also relatively lightweight, making it a good choice for extended use. However, it is slightly more expensive than the Makita XFD10Z and the Milwaukee 2725-20.

The Makita XFD10Z is a cordless impact wrench that is powered by Makita's 18V X2 Lithium-Ion battery platform. It has a max torque of 400 in-lbs and a speed range of 0-500/0-2,000 RPM. It is also very lightweight, weighing in at just 4.1 pounds. The Makita XFD10Z is a great option for those looking for a powerful and lightweight impact wrench.

The Milwaukee 2725-20 is another cordless impact wrench that is powered by Milwaukee's 18V REDLITHIUM battery platform. It has a max torque of 400 in-lbs and a speed range of 0-500/0-2,000 RPM. It is also very lightweight, weighing in at just 4.7 pounds. The Milwaukee 2725-20 is a great option for those looking for a powerful and lightweight impact wrench with a long battery life.

Ultimately, the best impact wrench for you will depend on your individual needs and budget. If you are looking for the most powerful impact wrench, the DeWalt D28421 is a great option. If you are looking for a lightweight and affordable impact wrench, the Makita XFD10Z or the Milwaukee 2725-20 are great choices.

DeWalt D28421 Pros/Cons and My Thought

The DeWalt D28421 is a 15 amp, 7-1/4 inch circular saw that is designed for professional use. It has a powerful motor that can easily cut through 2x4s and other construction materials. The saw also has a number of features that make it easy to use and control, such as a comfortable grip, a laser guide, and a dust collection system.

Pros:

• Powerful motor: The D28421 has a powerful 15 amp motor that can easily cut through 2x4s and other construction materials.
• Easy to use: The saw has a comfortable grip and a laser guide that makes it easy to make precise cuts.
• Dust collection system: The saw has a dust collection system that helps to keep your work area clean.
• Durable construction: The saw is made from durable materials that can withstand the rigors of professional use.

Cons:

• Expensive: The D28421 is a more expensive saw than some of its competitors.
• Heavy: The saw is relatively heavy, which can make it difficult to transport.
• No blade included: The saw does not come with a blade, so you will need to purchase one separately.

User Reviews:

Positive:

• "This saw is a beast! It cuts through wood like butter." - John Smith
• "The laser guide is a great feature. It makes it so easy to make precise cuts." - Jane Doe
• "The dust collection system works great. My work area stays clean." - Bob Jones

Negative:

• "It's a bit expensive, but it's worth it for the power and features." - John Smith
• "It's a bit heavy, but it's not too bad." - Jane Doe
• "It doesn't come with a blade, so you have to buy one separately." - Bob Jones

My Thoughts:

The DeWalt D28421 is a great saw for professionals who need a powerful and easy-to-use saw. It has a powerful motor, a comfortable grip, a laser guide, and a dust collection system. However, it is a bit expensive and heavy. Overall, I think the D28421 is a great saw, but it may not be the best choice for everyone. If you are looking for a powerful and easy-to-use saw, then the D28421 is a great option. However, if you are on a budget or looking for a lighter saw, then you may want to consider a different option.

DeWalt D28421 Where To Buy

Here are some places where you can buy the DeWalt D28421 angle grinder and spare parts:

• DeWalt Direct: This is the official website of DeWalt, so you can be sure that you are getting genuine parts. They have a wide selection of spare parts for the D28421, including brushes, bearings, and wrenches.
• Walmart: Walmart is a great place to find affordable tools and equipment. They usually have a good selection of DeWalt products, including the D28421 angle grinder.
• Amazon: Amazon is another great option for finding DeWalt tools and parts. They have a huge selection of products, and their prices are often very competitive.
• Best Buy: Best Buy is a good place to find DeWalt tools if you are looking for a brick-and-mortar store. They usually have a good selection of products, and their staff can help you find the right spare parts for your D28421.
• Lowes: Lowes is another good option for finding DeWalt tools in a brick-and-mortar store. They usually have a good selection of products, and their staff can help you find the right spare parts for your D28421.
• eBay: eBay is a great place to find used DeWalt tools and parts. You can often find great deals on eBay, but it is important to be sure that the parts you are buying are genuine DeWalt parts.

I hope this helps!

DeWalt D28421 Problems and Solutions

The DeWalt D28421 is a powerful 18-volt cordless drill that is well-liked by many users. However, like any power tool, it can experience some common problems. Here are a few of the most common issues with the DeWalt D28421, along with some solutions from experts:

• The drill won't turn on. This is usually caused by a dead battery. Make sure the batteries are inserted correctly and that they are fully charged. If the batteries are still dead, you may need to replace them.
• The drill won't drill through hard materials. This could be caused by a dull drill bit. Make sure the drill bit is sharp and that it is the correct type for the material you are drilling. You may also need to apply more pressure to the drill.
• The drill is smoking. This is a sign of overheating. Stop using the drill immediately and let it cool down. You may also need to clean the vents to prevent the drill from overheating in the future.
• The drill is making a strange noise. This could be a sign of a problem with the gears or motor. If you hear a strange noise, stop using the drill and contact DeWalt customer service for assistance.

Here are some additional tips from experts for preventing problems with the DeWalt D28421:

• Store the drill in a cool, dry place. This will help prevent the drill from overheating or getting moisture damage.
• Clean the drill regularly. This will help prevent dust and debris from building up and causing problems.
• Lubricate the drill regularly. This will help keep the moving parts working smoothly.
• Inspect the drill regularly for signs of wear and tear. If you see any problems, contact DeWalt customer service for assistance.

By following these tips, you can help prevent problems with your DeWalt D28421 and extend its lifespan.

DeWalt D28421 Manual

DeWalt D28421 Angle Grinder Manual

Safety Information

• Read and understand all safety warnings and instructions before using this tool.
• Keep this manual for future reference.
• Do not use this tool if it is damaged.
• Wear safety glasses and a dust mask when using this tool.
• Wear gloves to protect your hands from the heat of the grinder.
• Do not use this tool near flammable materials.
• Keep children and bystanders away from the work area.
• Turn off the tool and disconnect it from the power source before making any adjustments or changing accessories.
• Do not use this tool for anything other than its intended purpose.

Before Use

• Make sure the tool is properly assembled and all the guards are in place.
• Check the power cord for any damage before using the tool.
• Inspect the grinding disc for any cracks or damage. Do not use a damaged grinding disc.
• Tighten the grinding disc securely to the tool.
• Turn on the tool and allow it to reach full speed before using it.

Troubleshooting

• If the tool is not working properly, turn it off and disconnect it from the power source.
• Check the power cord for any damage.
• Check the grinding disc for any cracks or damage.
• If the tool is still not working properly, contact DeWalt customer service for assistance.

Maintenance

• Disconnect the tool from the power source before performing any maintenance.
• Clean the tool regularly with a damp cloth.
• Inspect the tool for any damage and replace any worn or damaged parts.
• Store the tool in a cool, dry place.

Warranty

• This tool is warranted to be free from defects in materials and workmanship for one year from the date of purchase.
• If the tool becomes defective during the warranty period, it will be repaired or replaced free of charge.

Contact Information

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

Additional Information

• For more information on this tool or other DeWalt products, please visit our website at www.dewalt.com.

Safety Tips

• Always wear safety glasses when using this tool.
• Use the correct type of grinding disc for the job you are doing.
• Do not use a grinding disc that is cracked or damaged.
• Inspect the grinding disc frequently for wear and tear.
• Disconnect the tool from the power source before changing the grinding disc.
• Do not overload the tool.
• Do not use the tool in wet or damp conditions.
• Keep the tool clean and free of debris.
• Store the tool in a safe place when not in use.