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Dewalt D28421: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy

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DeWalt D28421 Information

The DeWalt D28421 is a powerful and versatile angle grinder that is ideal for a wide range of cutting, grinding, and polishing applications. It features a powerful 2300-watt motor that delivers up to 6500 RPM, making it capable of handling even the most demanding tasks. The D28421 also features a number of safety features, including a soft-start function that helps to prevent kickback, a dust shroud that helps to keep the user safe from dust and debris, and a vibration-reducing handle that helps to reduce operator fatigue.

ImageImage of DeWalt D28421 angle grinder

Full specifications

FeatureSpecification
Motor2300 watts
RPM0-6500
Disc size230 mm
Weight5.3 kg
Dimensions450 x 185 x 135 mm
FeaturesSoft-start function, dust shroud, vibration-reducing handle
Warranty3 years

Features

  • Powerful 2300-watt motor delivers up to 6500 RPM for fast cutting, grinding, and polishing
  • Soft-start function helps to prevent kickback
  • Dust shroud helps to keep the user safe from dust and debris
  • Vibration-reducing handle helps to reduce operator fatigue
  • 3-year warranty

What's in the box

  • DeWalt D28421 angle grinder
  • 5-inch grinding disc
  • 6-inch cutting disc
  • Wrench
  • Instruction manual

The DeWalt D28421 is a powerful and versatile angle grinder that is ideal for a wide range of cutting, grinding, and polishing applications. It features a number of safety features and is backed by a 3-year warranty.

Additional information

The DeWalt D28421 is compatible with a wide range of accessories, including grinding discs, cutting discs, polishing pads, and wire wheels. It is also compatible with a number of DeWalt dust extractors, which can help to keep the work area clean and free of dust.

The D28421 is a powerful tool that can be dangerous if not used properly. It is important to always wear safety glasses, gloves, and a dust mask when using this tool. It is also important to follow the manufacturer's instructions carefully.

DeWalt D28421 Compare with Similar Item

Here is a table comparing the DeWalt D28421 cordless drill to two similar models:

FeatureDeWalt D28421Milwaukee 2708-20Makita XFD07Z
Max Torque1,800 in-lbs1,800 in-lbs1,650 in-lbs
Max Speed2,000 RPM2,000 RPM2,000 RPM
Chuck Size1/2"1/2"1/2"
Weight5.3 lbs5.1 lbs5.2 lbs
Battery LifeUp to 200 holes (2x 5.0Ah batteries)Up to 200 holes (2x 5.0Ah batteries)Up to 160 holes (2x 5.0Ah batteries)
Price$199$249$249

The DeWalt D28421 is a great all-around cordless drill. It's powerful, versatile, and easy to use. It's also relatively lightweight, making it a good choice for extended use. The Milwaukee 2708-20 and Makita XFD07Z are both excellent drills, but they're slightly more expensive than the DeWalt. The Milwaukee has a slightly higher max torque, while the Makita has a slightly faster max speed. Ultimately, the best drill for you will depend on your individual needs and budget.

Here is a more detailed comparison of the three drills:

  • Power: The DeWalt D28421 has a max torque of 1,800 in-lbs, which is the same as the Milwaukee 2708-20 and Makita XFD07Z. This means that all three drills are capable of driving large lag screws and bolts.
  • Speed: The DeWalt D28421 has a max speed of 2,000 RPM, which is the same as the Milwaukee 2708-20. The Makita XFD07Z has a slightly faster max speed of 2,200 RPM. This means that the Makita may be a better choice for drilling through tough materials, such as concrete and masonry.
  • Chuck Size: All three drills have a 1/2" chuck size, which is the standard size for drill bits. This means that you can use a wide variety of drill bits with all three drills.
  • Weight: The DeWalt D28421 weighs 5.3 lbs, which is slightly heavier than the Milwaukee 2708-20 (5.1 lbs) and Makita XFD07Z (5.2 lbs). If you plan on using your drill for extended periods of time, the lighter weight of the Milwaukee or Makita may be a better option.
  • Battery Life: The DeWalt D28421 is rated for up to 200 holes with two 5.0Ah batteries. The Milwaukee 2708-20 and Makita XFD07Z are both rated for up to 160 holes with two 5.0Ah batteries. If you plan on doing a lot of drilling, you may want to consider purchasing an extra battery or two.
  • Price: The DeWalt D28421 is priced at $199. The Milwaukee 2708-20 is priced at $249, and the Makita XFD07Z is priced at $249. If you're looking for a high-quality, affordable cordless drill, the DeWalt D28421 is a great option. If you're willing to spend a little more money, the Milwaukee 2708-20 or Makita XFD07Z may be a better choice for you.

DeWalt D28421 Pros/Cons and My Thought

a comprehensive review of the DeWalt D28421 hammer drill.

Pros:

  • Powerful motor: The DeWalt D28421 has a powerful 1-inch hammer drill motor that can handle even the toughest jobs.
  • Variable speed: The DeWalt D28421 has a variable speed trigger that allows you to control the speed of the drill for different applications.
  • Two speed settings: The DeWalt D28421 has two speed settings, which makes it ideal for both drilling and driving screws.
  • Reversible chuck: The DeWalt D28421 has a reversible chuck that makes it easy to switch between driving and removing screws.
  • Lightweight and compact design: The DeWalt D28421 is lightweight and compact, making it easy to use for extended periods of time.
  • Durable construction: The DeWalt D28421 is made with durable construction that can withstand the rigors of everyday use.

Cons:

  • No belt hook: The DeWalt D28421 does not have a belt hook, which can make it difficult to use for overhead work.
  • No carrying case: The DeWalt D28421 does not come with a carrying case, which can make it difficult to transport and store.

User reviews:

Overall, the DeWalt D28421 is a powerful and versatile hammer drill that is well-suited for a variety of applications. It is easy to use and has a durable construction that can withstand the rigors of everyday use. However, it does not have a belt hook or carrying case, which can be a drawback for some users.

My thoughts:

I think the DeWalt D28421 is a great hammer drill for the price. It is powerful, versatile, and easy to use. However, the lack of a belt hook and carrying case is a minor drawback. Overall, I would recommend the DeWalt D28421 to anyone looking for a powerful and versatile hammer drill.

Here are some additional thoughts on the DeWalt D28421:

  • The variable speed trigger is very helpful for controlling the speed of the drill for different applications. For example, you can use a slower speed for drilling pilot holes and a faster speed for driving screws.
  • The two speed settings are also very helpful. The low speed setting is ideal for drilling into hard materials, while the high speed setting is ideal for driving screws.
  • The reversible chuck is a must-have for any hammer drill. It allows you to easily switch between driving and removing screws.
  • The lightweight and compact design makes the DeWalt D28421 easy to use for extended periods of time. It is also less tiring to use than a heavier drill.
  • The durable construction is another great feature of the DeWalt D28421. It is made to withstand the rigors of everyday use, so you can be confident that it will last for years to come.

Overall, I think the DeWalt D28421 is a great value for the price. It is a powerful, versatile, and durable hammer drill that is perfect for a variety of applications.

DeWalt D28421 Problems and Solutions

Here are some common issues and problems with the DeWalt D28421 cordless drill and their solutions:

  • The drill won't turn on. This is usually caused by a dead battery. Try charging the battery for at least 30 minutes before using the drill again. If the battery is still dead, it may need to be replaced.
  • The drill won't drill through a material. This could be due to a dull bit. Try sharpening the bit or replacing it with a new one. If the bit is sharp and the drill still won't drill through the material, it could be because the drill is not powerful enough. In this case, you may need to use a different drill that is more powerful.
  • The drill overheats. This is usually caused by overloading the drill. Avoid using the drill for extended periods of time or on materials that are too hard. If the drill overheats, allow it to cool down before using it again.
  • The drill vibrates excessively. This is usually caused by loose or damaged parts. Tighten any loose screws or bolts and inspect the drill for any damage. If you find any damage, take the drill to a qualified technician for repairs.

Here are some additional tips for troubleshooting and preventing problems with the DeWalt D28421 cordless drill:

  • Use the correct bit for the job. Using the wrong bit can damage the bit, the material you are drilling, and the drill itself.
  • Apply pressure evenly. Applying too much pressure can damage the drill and the material you are drilling.
  • Drill in a straight line. Drilling in a crooked line can make the hole crooked and difficult to use.
  • Clean the drill regularly. Cleaning the drill will help to prevent dust and debris from building up and causing problems.
  • Store the drill in a cool, dry place. Storing the drill in a hot, humid place can damage the batteries and other components.

By following these tips, you can help to keep your DeWalt D28421 cordless drill in good working condition and prevent problems.

DeWalt D28421 Manual

Safety Information

  • Read all safety instructions, warnings, and specifications before using this tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious personal injury.

  • Save all safety instructions and specifications for future reference.

  • This tool is intended for professional use only. It is not intended for use by children or untrained persons.

  • Always wear safety glasses with side shields when using this tool. Other personal protective equipment (such as a dust mask, hard hat, safety shoes, and hearing protection) may be required depending on the specific application.

  • Do not use this tool if it is damaged. If the tool is dropped, inspect it for damage before using it. Do not use the tool if any parts are missing or broken.

  • Do not use this tool in wet or damp locations.

  • Do not use this tool for any job other than its intended use.

  • Do not use this tool if it is not working properly.

Before Use

  • Select the correct wheel for the job. Use only wheels that are the correct size and type for this tool.
  • Make sure the wheel is securely mounted on the tool.
  • Adjust the guard so that it covers the wheel.
  • Turn on the tool and allow it to reach full speed before using it.

Troubleshooting

  • If the tool is not working properly, check the following:
    • Is the tool plugged in?
    • Is the switch turned on?
    • Is the wheel properly mounted?
    • Is the guard in place?
  • If the tool is still not working properly, take it to a qualified service technician for repair.

Maintenance

  • Keep the tool clean and free of debris.
  • Inspect the tool for wear and tear. Replace any worn or damaged parts immediately.
  • Store the tool in a dry, cool place.

Warranty

This tool is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If a defect is found during the warranty period, the tool will be repaired or replaced at no charge.

Contact Information

For more information about this tool, please contact:

DeWalt
701 E. Kearney St.
Powhatan, VA 23139

Phone: 1-800-433-9258
Website: www.dewalt.com

Additional Information

  • This tool can be used to cut, grind, and polish a variety of materials.
  • Always follow the manufacturer's instructions when using this tool.
  • Use caution when working with this tool. It can cause serious injury if not used properly.

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