Makita Hr3850b: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

Makita HR3850B Information

The Makita HR3850B is a powerful and versatile 940-watt demolition hammer that is ideal for a variety of applications, including concrete breaking, masonry demolition, and tile removal. It features a durable metal gear housing and a powerful motor that delivers up to 1,100 joules of impact energy. The HR3850B also has a variable speed trigger and a forward/reverse switch, making it easy to control the speed and direction of the hammer.

Image of Makita HR3850B demolition hammer

Specifications

• Power: 940 watts
• Impact energy: 1,100 joules
• Speed: 0-2,900 bpm
• Weight: 8.3 kg
• Tool holder: SDS-Max
• Chuck size: 17 mm

Features

• Durable metal gear housing
• Powerful 940-watt motor
• Variable speed trigger
• Forward/reverse switch
• SDS-Max tool holder
• 17 mm chuck
• Dust blower
• Vibration control system

What's in the box

• Makita HR3850B demolition hammer
• SDS-Max chuck adapter
• Dust blower
• Hex wrench
• Operating instructions

The Makita HR3850B is a powerful and versatile demolition hammer that is perfect for a variety of applications. It is built to last with a durable metal gear housing and a powerful motor. The variable speed trigger and forward/reverse switch make it easy to control the speed and direction of the hammer. The HR3850B also comes with a dust blower and vibration control system to help keep you comfortable while working.

Here are some of the pros and cons of the Makita HR3850B:

Pros:

• Powerful 940-watt motor
• Durable metal gear housing
• Variable speed trigger
• Forward/reverse switch
• SDS-Max tool holder
• 17 mm chuck
• Dust blower
• Vibration control system

Cons:

• Can be a bit heavy for some users
• Not the cheapest demolition hammer on the market

Overall, the Makita HR3850B is a great choice for anyone looking for a powerful and versatile demolition hammer. It is built to last and comes with a variety of features that make it easy to use. If you are looking for a demolition hammer that can handle even the toughest jobs, the HR3850B is a great option.

Makita HR3850B Compare with Similar Item

a table comparing the Makita HR3850B with two similar items:

Feature	Makita HR3850B	Makita HR3810X	DeWalt DCH273X1
Hammer type	Rotary	Rotary	Rotary
Voltage	18V	18V	20V MAX
Hammer force	3.8 Joules	3.6 Joules	4.0 Joules
Drilling capacity	Concrete: 38mm	Concrete: 36mm	Concrete: 40mm
Drilling speed	0-1,050 rpm	0-1,050 rpm	0-1,300 rpm
Weight	3.3kg	2.8kg	3.1kg
Price	$299	$279	$329

As you can see, the Makita HR3850B is a very powerful hammer drill, with a hammer force of 3.8 Joules. It is also very versatile, with a drilling capacity of 38mm in concrete. However, it is also the heaviest of the three drills, at 3.3kg.

The Makita HR3810X is a slightly lighter drill, at 2.8kg, but it has a slightly lower hammer force of 3.6 Joules. It also has a slightly slower drilling speed of 0-1,050 rpm. However, it is also slightly cheaper, at $279.

The DeWalt DCH273X1 is the most powerful of the three drills, with a hammer force of 4.0 Joules. It is also the fastest drill, with a drilling speed of 0-1,300 rpm. However, it is also the heaviest drill, at 3.1kg. It is also the most expensive drill, at $329.

Ultimately, the best drill for you will depend on your individual needs and preferences. If you are looking for the most powerful drill, the DeWalt DCH273X1 is a good option. If you are looking for a lighter drill, the Makita HR3810X is a good option. And if you are looking for a versatile drill, the Makita HR3850B is a good option.

Makita HR3850B Pros/Cons and My Thought

The Makita HR3850B is a powerful electric hammer drill that is well-suited for a variety of applications, including demolition, drilling, and driving. It features a 1,500-watt motor that delivers up to 5,200 impacts per minute, making it capable of handling even the toughest jobs. The drill also has a variable speed control and a built-in hammer stop, which allows you to adjust the speed and power output to suit the task at hand.

Pros:

• Powerful 1,500-watt motor
• 5,200 impacts per minute
• Variable speed control
• Built-in hammer stop
• Durable construction
• Lightweight and easy to use

Cons:

• Can be noisy
• Not as compact as some other models
• Pricey

User Reviews:

Positive:

• "This drill is a beast! It's powerful enough to handle even the toughest jobs."
• "I love the variable speed control. It allows me to adjust the power output to suit the task at hand."
• "The built-in hammer stop is a great feature. It prevents me from accidentally damaging my workpiece."

Negative:

• "This drill is a bit noisy. I wouldn't recommend it if you're working in a quiet environment."
• "It's not as compact as some other models. This can make it a bit cumbersome to use in tight spaces."
• "It's a bit pricey. However, I think it's worth the investment for the power and performance it offers."

My Thoughts:

Overall, I think the Makita HR3850B is a great electric hammer drill. It's powerful, versatile, and easy to use. However, it is a bit noisy and pricey. If you're looking for a powerful and versatile drill that can handle even the toughest jobs, then I would definitely recommend the Makita HR3850B. However, if you're on a budget or you need a drill that is more compact, then I would consider other options.

Here are some additional thoughts:

• The Makita HR3850B is a great choice for professionals who need a powerful and versatile drill. It's also a good choice for homeowners who need a drill that can handle heavy-duty tasks.
• The drill is well-built and should last for many years with proper care.
• The variable speed control is a great feature that allows you to adjust the power output to suit the task at hand.
• The built-in hammer stop is a safety feature that prevents you from accidentally damaging your workpiece.
• The drill is a bit noisy, but this is to be expected with a powerful drill.
• The drill is not as compact as some other models, but it is still relatively lightweight and easy to use.
• The drill is a bit pricey, but I think it's worth the investment for the power and performance it offers.

Makita HR3850B Where To Buy

some places where you can buy the Makita HR3850B and spare parts:

• Makita Direct. This is the official website of Makita, so you can be sure that you are buying genuine parts. They also offer free shipping on orders over $49.
• Walmart. Walmart is a great place to find affordable tools and parts. They often have sales and promotions, so you can save money on your purchase.
• Amazon. Amazon is another great option for finding tools and parts. They have a wide selection of items to choose from, and their prices are often very competitive.
• Best Buy. Best Buy is a good option if you are looking for a brick-and-mortar store where you can buy the Makita HR3850B and spare parts. They have a knowledgeable staff who can help you find the right parts for your needs.
• Lowes. Lowes is another good option for finding a brick-and-mortar store where you can buy the Makita HR3850B and spare parts. They have a wide selection of tools and parts, and their prices are often competitive.
• eBay. eBay is a great place to find used tools and parts. You can often find great deals on eBay, but be sure to do your research before you buy to make sure that you are getting a genuine part.

I hope this helps!

Makita HR3850B Problems and Solutions

The Makita HR3850B is a powerful rotary hammer drill that is known for its durability and performance. However, like any power tool, it can experience some common problems. Here are a few of the most common issues and solutions, as advised by experts:

• The hammer drill won't turn on. This is usually caused by a problem with the power cord or the switch. To troubleshoot, check the power cord for any damage and make sure that it is properly plugged into an outlet. If the power cord is in good condition, check the switch to make sure that it is turned on. If the switch is turned on and the hammer drill still won't turn on, you may need to replace the switch.
• The hammer drill is not producing enough power. This can be caused by a number of factors, including a clogged air filter, a dirty hammer mechanism, or a worn-out clutch. To troubleshoot, check the air filter for any clogs and clean it if necessary. If the air filter is clean, check the hammer mechanism for any dirt or debris and clean it as needed. If the hammer mechanism is clean, you may need to replace the clutch.
• The hammer drill is making a strange noise. This could be a sign of a number of problems, including a worn-out bearing, a damaged chuck, or a loose belt. To troubleshoot, listen carefully to the noise and try to identify the source. If you can't identify the source of the noise, you may need to take the hammer drill to a qualified technician for further diagnosis.

Here are some additional tips for preventing problems with your Makita HR3850B:

• Keep the hammer drill clean and lubricated. This will help to prevent dirt and debris from accumulating and causing problems.
• Use the hammer drill for the correct applications. Do not use the hammer drill for tasks that it is not designed for, such as chiseling or demolition.
• Store the hammer drill in a cool, dry place. This will help to prevent the components from corroding or becoming damaged.

By following these tips, you can help to keep your Makita HR3850B in good working condition and prevent common problems.

Makita HR3850B Manual

Makita HR3850B Rotary Hammer

Safety Information

• Read and understand all safety instructions before using this tool.
• Keep this manual for future reference.
• Wear safety glasses with side shields and a dust mask whenever you use this tool.
• Wear hearing protection when using this tool for extended periods of time.
• Do not use this tool if it is damaged or malfunctioning.
• Keep children and bystanders away from the work area.
• Do not use this tool in wet or damp conditions.
• Do not overload the tool.
• Use the correct size drill bit for the job.
• Do not use this tool for applications for which it is not intended.

Before Use

• Inspect the tool for any damage before using it.
• Make sure that the tool is properly assembled.
• Check the power cord for any damage.
• Do not use the tool if it is damaged or malfunctioning.

Troubleshooting

• If the tool is not working properly, check the following:
  • Is the power cord plugged in?
  • Is the switch turned on?
  • Is the drill bit the correct size for the job?
  • Is the tool overloaded?
  • Is the tool damaged?

Maintenance

• Keep the tool clean and free of debris.
• Inspect the tool for any damage on a regular basis.
• Replace 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 the tool becomes defective during the warranty period, it will be repaired or replaced, at Makita's option, free of charge.

Contact Information

Makita USA 14935 NE 20th St Woodinville, WA 98072

Additional Information

• For more information about this tool, please visit the Makita website at www.makitatools.com.
• You can also contact Makita customer service at 1-800-462-5686.

Here are some additional safety tips for using a rotary hammer:

• Always wear safety glasses and a dust mask when using a rotary hammer.
• Keep your hands away from the rotating bits.
• Do not use the rotary hammer for anything other than its intended purpose.
• Be careful not to overload the tool.
• Inspect the tool regularly for any damage.
• Store the tool in a safe place when not in use.

By following these safety tips, you can help to prevent accidents and injuries when using a rotary hammer.