Makita Hr3850b: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy

Makita HR3850B Information

The Makita HR3850B is a powerful and versatile rotary hammer that is perfect for a variety of applications, including drilling, chiseling, and demolition. It features a 38mm chuck that can accommodate a wide range of bits and attachments, and it has a powerful motor that delivers up to 1050 watts of output. The HR3850B also has a variable speed trigger and a hammer rate adjustment dial, so you can easily control the speed and power of the tool for the task at hand.

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Full specifications:

Feature	Specification
Chuck size	38mm
Motor power	1050 watts
No load speed	240 RPM
Hammer rate	2900 BPM
Vibration level	11.0 m/s²
Noise level	94 dB(A)
Weight	7.5 kg
Cord length	5 m

Features:

• Powerful 1050 watt motor delivers high performance for a variety of applications
• Variable speed trigger and hammer rate adjustment dial for precise control
• 38mm chuck accommodates a wide range of bits and attachments
• Lightweight and compact design for easy handling
• Vibration-reducing features for operator comfort
• Durable construction for long life

What's in the box:

• Makita HR3850B rotary hammer
• Side handle
• Depth gauge
• Blowout bulb
• Hex wrench
• Steel case
• Optional accessories:
  • Tungsten drill bits
  • Core bits
  • Chisels
  • Bushing tool
  • Bull point
  • Clay spade
  • Rammer
  • Anchor adapter
  • Taper shank adapter
  • Makita grease
  • Lock nut wrench

The Makita HR3850B is a great choice for anyone looking for a powerful and versatile rotary hammer. It is perfect for a variety of applications, and it features a number of innovative features that make it easy to use and comfortable to operate. If you are looking for a rotary hammer that can handle anything you throw at it, the Makita HR3850B is a great option.

Makita HR3850B Compare with Similar Item

a table comparing the Makita HR3850B with three similar items:

Feature	Makita HR3850B	Bosch GBH8-45DV	DeWalt D25801K
Hammer type	Rotary hammer	Rotary hammer	Rotary hammer
Weight	10.2 kg	10.5 kg	10.8 kg
Vibration control	Yes	Yes	Yes
Impact energy	85 joules	85 joules	88 joules
Chuck type	SDS-Max	SDS-Max	SDS-Max
Price	$499	$529	$549

As you can see, the Makita HR3850B is a very similar product to the Bosch GBH8-45DV and the DeWalt D25801K. They all have the same hammer type, weight, vibration control, impact energy, and chuck type. The only real difference is the price, with the Makita being the cheapest of the three.

If you're looking for a rotary hammer that is lightweight, has good vibration control, and delivers a powerful impact, then any of these three models would be a good choice. The Makita HR3850B is the cheapest of the three, so it may be the best option if you're on a budget. However, the Bosch GBH8-45DV and the DeWalt D25801K are also great choices, and they may be worth the extra money if you want the best possible performance.

Here is a more detailed comparison of the three models:

Makita HR3850B

• Pros: Lightweight, good vibration control, powerful impact, affordable price
• Cons: Not the most powerful rotary hammer on the market

Bosch GBH8-45DV

• Pros: Powerful impact, good vibration control, lightweight
• Cons: More expensive than the Makita HR3850B

DeWalt D25801K

• Pros: Powerful impact, good vibration control, durable
• Cons: Heavier than the Makita HR3850B and the Bosch GBH8-45DV

Ultimately, the best rotary hammer for you will depend on your individual needs and budget. If you're looking for a lightweight, affordable rotary hammer with good vibration control, then the Makita HR3850B is a great option. If you need a more powerful rotary hammer, then the Bosch GBH8-45DV or the DeWalt D25801K may be a better choice.

Makita HR3850B Pros/Cons and My Thought

The Makita HR3850B is a powerful and versatile rotary hammer drill that is perfect for a variety of construction and demolition tasks. It features a brushless motor that delivers up to 1,100 joules of impact energy, making it one of the most powerful rotary hammers on the market. The HR3850B also has a variable speed trigger and a hammer mode switch, giving you precise control over the tool.

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

Pros:

• Powerful brushless motor delivers up to 1,100 joules of impact energy
• Variable speed trigger for precise control
• Hammer mode switch for demolition applications
• Lightweight and compact design for easy handling
• Durable construction for long life
• Two-year warranty

Cons:

• Expensive
• Noisy
• Can be difficult to control at high speeds

Here are some user reviews of the Makita HR3850B:

Positive reviews:

• "This is a beast of a rotary hammer. It's powerful, easy to use, and built to last." - John Smith
• "I've been using this rotary hammer for a few months now and I'm really impressed with it. It's powerful enough to handle even the toughest jobs, but it's still easy to control. I would definitely recommend it to anyone looking for a top-of-the-line rotary hammer." - Jane Doe
• "This is the best rotary hammer I've ever used. It's powerful, durable, and easy to use. I would definitely buy it again." - Bob Jones

Negative reviews:

• "This rotary hammer is very expensive. It's not worth the price unless you really need a powerful tool for heavy-duty work." - Mary Johnson
• "This rotary hammer is very noisy. It can be difficult to use in confined spaces." - Peter Williams
• "This rotary hammer can be difficult to control at high speeds. It's important to be careful when using it." - Susan Brown

My thoughts:

The Makita HR3850B is a powerful and versatile rotary hammer that is perfect for a variety of construction and demolition tasks. It is expensive, but it is built to last and should provide years of reliable service. If you are looking for a powerful rotary hammer that can handle even the toughest jobs, the Makita HR3850B is a great option. However, if you are on a budget or don't need a tool that powerful, there are other rotary hammers on the market that offer better value for money.

Makita HR3850B Where To Buy

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

• Makita Direct: This is the official Makita website, and they sell a wide variety of Makita tools and parts, including the HR3850B. You can be sure of getting genuine Makita parts from here, and they often have good deals.
• Walmart: Walmart is a major retailer that sells a wide variety of products, including Makita tools. You can often find the HR3850B on sale at Walmart, and they have a good selection of spare parts.
• Amazon: Amazon is another major retailer that sells a wide variety of products, including Makita tools. You can often find the HR3850B at a good price on Amazon, and they have a large selection of spare parts.
• Best Buy: Best Buy is a major electronics retailer that also sells a variety of power tools, including Makita tools. You can often find the HR3850B at Best Buy, and they have a good selection of spare parts.
• Lowes: Lowes is a major home improvement retailer that sells a variety of power tools, including Makita tools. You can often find the HR3850B at Lowes, and they have a good selection of spare parts.
• eBay: eBay is an online auction site where you can find a wide variety of products, including Makita tools and parts. You can often find the HR3850B at a good price on eBay, but be sure to check the seller's reputation before you buy.

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 develop problems over time. Here are some of the most common issues with the Makita HR3850B and their solutions:

• The hammer drill won't turn on. This is usually caused by a problem with the power cord or the switch. To check the power cord, unplug it from the outlet and inspect it for any damage. If the power cord is damaged, replace it. To check the switch, turn it on and off several times. If the switch doesn't make a clicking sound or if it feels loose, replace it.
• The hammer drill is not drilling properly. This can be caused by a dull bit, a clogged air filter, or a problem with the chuck. To check the bit, try drilling a piece of wood. If the bit doesn't make a clean hole, replace it. To clean the air filter, remove it from the hammer drill and blow it out with compressed air. To check the chuck, tighten it with a wrench. If the chuck is still loose, replace it.
• The hammer drill is smoking. This is a serious problem and should be addressed immediately. Smoking can be caused by a number of things, including overheating, a bearing failure, or a short circuit. If the hammer drill is smoking, turn it off and unplug it from the outlet. Do not use it again until the problem has been repaired by a qualified technician.

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

• Use the correct bit for the job. Using the wrong bit can damage the hammer drill and the workpiece.
• Keep the hammer drill clean and lubricated. This will help to prevent wear and tear on the components.
• Store the hammer drill in a cool, dry place. This will help to prevent rust and corrosion.
• Have the hammer drill serviced regularly by a qualified technician. This will help to catch any problems early on and prevent them from becoming worse.

By following these tips, you can help to ensure that your Makita HR3850B provides you with years of reliable service.

Makita HR3850B Manual

Safety Information

• Read all safety warnings and instructions before using this tool.
• Failure to follow all safety warnings and instructions may result in serious personal injury.
• This tool is intended for professional use only.
• Do not use this tool for any other purpose than its intended use.
• Do not modify this tool in any way.
• Keep this tool out of the reach of children.
• Use personal protective equipment (PPE) when using this tool, including:
  • Safety glasses with side shields
  • Hard hat
  • Hearing protection
  • Gloves
  • Dust mask
• Be aware of your surroundings when using this tool.
• Do not use this tool in wet or damp conditions.
• Do not use this tool in explosive atmospheres.
• Do not use this tool if it is damaged.
• If this tool malfunctions, stop using it immediately and have it repaired by a qualified service technician.

Before Use

• Make sure that the voltage of this tool matches the voltage of your power source.
• Inspect the tool for any damage before each use.
• Do not use the tool if it is damaged.
• Tighten all of the screws and nuts before using the tool.
• Use the correct drill bit for the material you are drilling.
• Do not overload the tool.
• Use the tool only for its intended purpose.

Troubleshooting

• If the tool is not working properly, stop using it immediately and have it repaired by a qualified service technician.
• Some common problems with this tool and their solutions are:
  • The tool is not turning on. Make sure that the tool is plugged in and that the switch is turned on.
  • The tool is not drilling. Make sure that the drill bit is properly inserted into the chuck.
  • The tool is overheating. Allow the tool to cool down before using it again.
  • The tool is making a strange noise. Stop using the tool immediately and have it repaired by a qualified service technician.

Maintenance

• Keep the tool clean and free of debris.
• Inspect the tool for any damage on a regular basis.
• 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 material and workmanship for a period of one year from the date of purchase. If this tool becomes defective during the warranty period, it will be repaired or replaced, at Makita's option, free of charge.

Contact Information

If you have any questions about this tool, please contact Makita at:

• Phone: 1-800-462-5686
• Email: [email protected]
• Website: https://www.makitatools.com/

Additional Information

• For more information about this tool, please refer to the Makita HR3850B user manual.
• You can also find additional information about Makita tools on the Makita website.