The Complete Guide To Makita Dga458: Specifications, Pros And Cons, Troubleshooting, And Buying Tips
Makita DGA458 Information
the information about the Makita DGA458 angle grinder:
Introduction
The Makita DGA458 is a 115mm cordless angle grinder that is powered by a brushless motor. It has a no-load speed of 8,500 rpm and a maximum disc speed of 11,000 rpm. The grinder is also equipped with a paddle switch for added safety and control.

Specifications
| Feature | Specification |
|---|---|
| Motor | Brushless |
| Battery Voltage | 18V |
| Disc Size | 115mm |
| No-load Speed | 8,500 rpm |
| Maximum Disc Speed | 11,000 rpm |
| Weight | 2.1kg (without battery) |
Features
- Brushless motor for increased power and runtime
- Paddle switch for added safety and control
- Electronic speed control for precise grinding
- Dust cover for improved visibility and protection
- Spindle lock for easy disc changes
- Vibration-reducing handle for improved comfort
- Long service life
What's in the box
- Makita DGA458 angle grinder
- 18V LXT battery
- Charger
- Instruction manual
The Makita DGA458 is a powerful and versatile cordless angle grinder that is ideal for a variety of applications, including cutting, grinding, and polishing. It is perfect for professional and DIY users alike.
Here are some additional information about the Makita DGA458:
- It is compatible with all Makita 18V LXT batteries.
- It has a dust shroud that can be attached to collect dust and debris, helping to keep your work area clean.
- It has a side handle that can be adjusted to provide a comfortable grip for different users.
- It comes with a 2-year warranty.
If you are looking for a powerful and versatile cordless angle grinder, the Makita DGA458 is a great option. It is a reliable tool that will provide you with years of service.
Makita DGA458 Compare with Similar Item
a table comparison of the Makita DGA458 and some of its similar items:
| Feature | Makita DGA458 | Makita XAG04Z | Milwaukee M18 FUEL | Bosch GWS18V-100C |
|---|---|---|---|---|
| Price | $199 | $299 | $299 | $249 |
| Battery | 18V | 18V | 18V | 18V |
| RPM | 8,500 | 8,500 | 10,000 | 8,500 |
| Weight | 5.0 lbs | 5.6 lbs | 5.6 lbs | 5.3 lbs |
| Features | Dust blower, electric brake, vibration control | Dust blower, electric brake, vibration control | Dust blower, electric brake, vibration control | Dust blower, electric brake, vibration control |
As you can see, the Makita DGA458 is the most affordable option, but it also has the lowest RPM and weight. The Makita XAG04Z is more expensive, but it has a higher RPM and comes with a dust blower, electric brake, and vibration control. The Milwaukee M18 FUEL and Bosch GWS18V-100C are also more expensive, but they have the highest RPM and come with all of the features that the Makita XAG04Z has.
Ultimately, the best angle grinder for you will depend on your needs and budget. If you are looking for an affordable option with basic features, the Makita DGA458 is a good choice. If you are willing to spend more money for a more powerful and feature-rich angle grinder, the Makita XAG04Z, Milwaukee M18 FUEL, or Bosch GWS18V-100C are all good options.
Here are some additional things to consider when choosing an angle grinder:
- Power: The RPM of an angle grinder determines its cutting speed. A higher RPM will allow you to cut through materials more quickly.
- Features: Some features that you may want to consider include a dust blower, electric brake, and vibration control. A dust blower can help to keep your work area clean, an electric brake can stop the wheel quickly, and vibration control can help to reduce fatigue.
- Battery: If you choose a cordless angle grinder, you will need to consider the type and capacity of the battery. A larger battery will provide longer runtime, but it will also be heavier.
- Warranty: Most angle grinders come with a one-year warranty. Some manufacturers offer extended warranties, so be sure to check the warranty terms before you make a purchase.
Makita DGA458 Pros/Cons and My Thought
a comprehensive review of the Makita DGA458:
Pros:
- Powerful motor: The Makita DGA458 has a powerful 18V motor that can deliver up to 2,400 impacts per minute. This makes it a great choice for heavy-duty demolition tasks, such as breaking up concrete or removing tiles.
- Lightweight and compact design: The Makita DGA458 is relatively lightweight and compact, making it easy to maneuver in tight spaces. It also has a comfortable grip that reduces fatigue during long use.
- Dust-sealed motor: The Makita DGA458 has a dust-sealed motor that helps to keep it running smoothly and prolong its lifespan.
- Variable speed trigger: The Makita DGA458 has a variable speed trigger that allows you to control the amount of impact force. This is useful for delicate tasks, such as chipping away at old paint or removing grout.
- Long battery life: The Makita DGA458 is compatible with Makita's 18V LXT batteries, which offer long runtimes.
Cons:
- Expensive: The Makita DGA458 is more expensive than some other demolition hammers on the market.
- Noisy: The Makita DGA458 can be quite noisy, so it's not ideal for use in residential areas.
- Vibration: The Makita DGA458 can produce a lot of vibration, which can be uncomfortable to use for long periods of time.
User reviews:
Overall, the Makita DGA458 has received positive reviews from users. Many users have praised its power, lightweight design, and dust-sealed motor. However, some users have also noted that it is noisy and vibrates a lot.
My thoughts:
The Makita DGA458 is a powerful and versatile demolition hammer that is well-suited for heavy-duty tasks. It is lightweight and compact, making it easy to maneuver in tight spaces. The dust-sealed motor helps to keep it running smoothly and prolong its lifespan. The variable speed trigger allows you to control the amount of impact force, which is useful for delicate tasks. However, the Makita DGA458 is more expensive than some other demolition hammers on the market. It is also noisy and vibrates a lot, which can be uncomfortable to use for long periods of time.
Overall, I think the Makita DGA458 is a great choice for professional users who need a powerful and versatile demolition hammer. However, for home use, I would recommend a less expensive model that is less noisy and vibrates less.
Makita DGA458 Where To Buy
Here are some places where you can buy the Makita DGA458 and spare parts:
- Makita Direct: This is the official Makita website, so you can be sure that you are getting genuine parts. They have a wide selection of spare parts for the DGA458, and you can usually find what you need in stock.

- Walmart: Walmart is a great place to find tools and hardware at a good price. They usually have a good selection of Makita tools, including the DGA458. You can also find spare parts for the DGA458 at Walmart, but the selection may not be as wide as Makita Direct.

- Amazon: Amazon is another great place to find tools and hardware. They have a huge selection of Makita tools, including the DGA458. You can also find spare parts for the DGA458 on Amazon, and the selection is usually very good.

- Best Buy: Best Buy is a good option if you are looking for a brick-and-mortar store to buy the DGA458. They usually have a good selection of Makita tools, and you can sometimes find the DGA458 on sale.

- Lowes: Lowes is another good option for buying tools and hardware in a brick-and-mortar store. They usually have a good selection of Makita tools, including the DGA458.

- eBay: eBay is a good place to find used or refurbished Makita tools, including the DGA458. You can also sometimes find spare parts for the DGA458 on eBay, but the selection is not as wide as the other retailers listed above.

I hope this helps!
Makita DGA458 Problems and Solutions
some common issues and problems with the Makita DGA458 angle grinder and their solutions:
- The angle grinder is not spinning at a constant speed or is slower than normal.
- This is most likely caused by worn carbon brushes. To check the carbon brushes, first remove the side cover of the angle grinder. The carbon brushes are located near the motor. If the carbon brushes are worn down to the point where they are no longer making contact with the commutator, they will need to be replaced.
- To replace the carbon brushes, first disconnect the power cord from the angle grinder. Then, use a small screwdriver to remove the screws that hold the carbon brushes in place. Remove the old carbon brushes and install the new ones. Make sure that the new carbon brushes are making good contact with the commutator. Once the new carbon brushes are installed, reassemble the angle grinder and test it to see if the problem is resolved.
- The angle grinder is making a loud noise.
- This could be caused by a number of things, such as a worn bearing, a loose nut, or a damaged internal component. To diagnose the problem, first disconnect the power cord from the angle grinder. Then, visually inspect the grinder for any obvious signs of damage. If you see any damage, you will need to take the grinder to a qualified technician for repairs.
- If you do not see any obvious signs of damage, you can try to narrow down the problem by listening to the noise the grinder is making. If the noise is coming from the bearing, it will typically sound like a high-pitched whine. If the noise is coming from a loose nut, it will typically sound like a rattling or clicking noise. If the noise is coming from a damaged internal component, it will typically sound like a grinding or crunching noise.
- Once you have narrowed down the problem, you can take the necessary steps to fix it. If the noise is coming from a bearing, you will need to replace the bearing. If the noise is coming from a loose nut, you will need to tighten the nut. If the noise is coming from a damaged internal component, you will need to take the grinder to a qualified technician for repairs.
- The angle grinder is smoking.
- This is a serious problem and should be addressed immediately. Smoking can be caused by a number of things, such as a short circuit, a damaged electrical component, or a fire. If you see your angle grinder smoking, you should immediately disconnect the power cord and take the grinder to a qualified technician for repairs.
It is important to note that these are just some of the most common problems with the Makita DGA458 angle grinder. If you are experiencing a problem that is not listed here, you should consult the owner's manual or contact Makita customer support for assistance.
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