The Complete Guide To Makita Dga458: Specifications, Pros And Cons, Troubleshooting, And Buying Tips

Makita DGA458 Information

The Makita DGA458 is a 115mm (4.5") brushless angle grinder that runs on an 18V LXT battery. It has a no-load speed of 8,500 RPM and a maximum disc speed of 11,000 RPM. The grinder is dust-proof and water-resistant, making it ideal for use in harsh environments. It also features a paddle switch for added safety and control.

Here is a table of the full specifications of the Makita DGA458:

Feature	Specification
Motor	Brushless
Battery Voltage	18V
Disc Size	115mm (4.5")
No-load Speed	8,500 RPM
Maximum Disc Speed	11,000 RPM
Dust-proof and Water-resistant	Yes
Paddle Switch	Yes
Weight	2.4kg (5.3lbs)

Here are some of the features of the Makita DGA458:

• Brushless motor for longer runtime and increased power
• Dust-proof and water-resistant construction for use in harsh environments
• Paddle switch for added safety and control
• Two-position side handle for comfortable operation
• Quick-release guard for easy disc changes
• Battery level indicator
• Anti-restart function to prevent accidental start-up
• Thermal overload protection to prevent the motor from overheating

Here is what's included in the box:

• Makita DGA458 angle grinder
• 18V LXT battery
• Charger
• Instruction manual

The Makita DGA458 is a powerful and versatile angle grinder that is perfect for a variety of applications, including cutting, grinding, and polishing. It is ideal for use in both professional and DIY settings.

Makita DGA458 Compare with Similar Item

a table comparing the Makita DGA458 to some similar cordless angle grinders:

Feature	Makita DGA458	Milwaukee M18 FUEL	DeWalt Flexvolt XR
Voltage	18V	18V	20V MAX
RPM	8,500	8,500	9,500
Torque	40 N-m	45 N-m	54 N-m
Weight	2.6 lbs	2.6 lbs	3.2 lbs
Accessory case	Yes	Yes	Yes
Price	$199	$229	$249

As you can see, the Makita DGA458 is very similar to the Milwaukee M18 FUEL and DeWalt Flexvolt XR in terms of features and performance. However, it is slightly lighter and less expensive than the Milwaukee and DeWalt models.

If you are looking for a powerful and versatile cordless angle grinder, the Makita DGA458 is a great option. It is lightweight and easy to use, and it has a long battery life. However, if you need the absolute highest performance, you may want to consider the Milwaukee or DeWalt models.

Here is a more detailed comparison of the three models:

Makita DGA458

• Pros: Lightweight, easy to use, long battery life
• Cons: Not the most powerful option

Milwaukee M18 FUEL

• Pros: Powerful, long battery life, durable construction
• Cons: Heavier than the Makita DGA458

DeWalt Flexvolt XR

• Pros: Most powerful option, long battery life, durable construction
• Cons: Heaviest option, most expensive

Ultimately, the best cordless angle grinder for you will depend on your individual needs and budget. If you are looking for a lightweight and easy-to-use model, the Makita DGA458 is a great option. If you need the absolute highest performance, the Milwaukee M18 FUEL or DeWalt Flexvolt XR are better choices.

Makita DGA458 Pros/Cons and My Thought

a comprehensive overview of the Makita DGA458 cordless angle grinder, including pros, cons, user reviews, and my thoughts:

Pros:

• Powerful motor: The Makita DGA458 is powered by a 18V brushless motor that delivers up to 8,500 RPM, making it one of the most powerful cordless angle grinders on the market.
• Lightweight and compact design: The DGA458 weighs just 3.4 pounds and has a compact design, making it easy to maneuver and control.
• Ergonomic grip: The DGA458 features an ergonomic grip that reduces vibration and provides a comfortable grip, even during extended use.
• Dust protection: The DGA458 has a dust protection system that helps to keep the motor and internal components clean, extending the life of the tool.
• Long battery life: The DGA458 is compatible with Makita's 18V LXT batteries, which offer long battery life and fast charging times.

Cons:

• Expensive: The Makita DGA458 is a premium cordless angle grinder, and as such, it is more expensive than some of its competitors.
• No guard included: The DGA458 does not come with a guard, which is a safety feature that is included with many other cordless angle grinders.
• No carrying case included: The DGA458 also does not come with a carrying case, which can be inconvenient for transporting the tool.

User reviews:

Overall, user reviews of the Makita DGA458 are positive. Users praise the tool's power, lightweight design, and ergonomic grip. However, some users have noted that the tool is expensive and does not come with a guard or carrying case.

My thoughts:

The Makita DGA458 is a powerful and versatile cordless angle grinder that is perfect for a variety of applications. The tool is lightweight and easy to maneuver, and the ergonomic grip provides a comfortable grip, even during extended use. The dust protection system helps to keep the motor and internal components clean, extending the life of the tool. The long battery life is also a major plus.

Overall, I think the Makita DGA458 is a great cordless angle grinder. It is powerful, lightweight, and easy to use. However, it is also expensive and does not come with a guard or carrying case. If you are looking for a premium cordless angle grinder with all the bells and whistles, then the Makita DGA458 is a great option. However, if you are on a budget or do not need all the features, then there are other cordless angle grinders on the market that may be a better fit for you.

Makita DGA458 Problems and Solutions

some common issues and problems with the Makita DGA458 angle grinder and their solutions:

• The 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 unplug the grinder and remove the side cover. The carbon brushes are located on the side of 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 wires from the old brushes. Then, use a small screwdriver to pry the old brushes out of the motor. Insert the new brushes into the motor and reconnect the wires. Finally, replace the side cover and plug in the grinder.
• The grinder is smoking or making a strange noise.
  • This could be a sign of a more serious problem, such as a bearing failure or a short circuit. If you see smoke or hear a strange noise coming from the grinder, immediately unplug it and stop using it. Do not attempt to fix the grinder yourself, as this could pose a safety hazard. Take the grinder to a qualified technician for repairs.
• The grinder is not turning on at all.
  • This could be caused by a number of things, such as a blown fuse, a tripped circuit breaker, or a problem with the switch. First, check the fuse or circuit breaker in your home's electrical panel. If they are not blown or tripped, then the problem is likely with the switch on the grinder. To check the switch, unplug the grinder and use a multimeter to test for continuity. If there is no continuity, then the switch will need to be replaced.

Here are some additional tips for troubleshooting and maintaining your Makita DGA458 angle grinder:

• Always wear safety glasses when using an angle grinder.
• Make sure the grinder is properly grounded.
• Do not overload the grinder.
• Inspect the grinder regularly for wear and tear.
• Replace worn or damaged parts immediately.
• Store the grinder in a cool, dry place.

By following these tips, you can help keep your Makita DGA458 angle grinder in good working condition for years to come.

Makita DGA458 Manual

Makita DGA458 Cordless Angle Grinder

Safety Information

• Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.
• Save all warnings and instructions for future reference.
• The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

General Safety Precautions

• Do not use the power tool if it is damaged. If the power tool is dropped, damaged, or malfunctions, have it repaired by a qualified service technician before using it again.
• Never use the power tool if the switch does not turn it on and off.
• Disconnect the battery from the power tool before making any adjustments or removing/installing attachments.
• Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
• Do not operate the power tool in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust. The power tool creates sparks which could ignite the dust or fumes.
• Keep children and bystanders away while operating the power tool. Distractions can cause you to lose control of the power tool.
• Use personal protective equipment (PPE) such as dust mask, safety goggles, hard hat, hearing protection, and gloves when operating the power tool. The PPE used will vary depending on the specific application.
• Do not force the power tool. Use the correct power tool for the job. The correct power tool will do the job better and safer at the rate for which it was designed.
• Do not use the power tool if the trigger does not operate smoothly.
• Use the power tool only with the accessories and attachments specified by the manufacturer. Use of any other accessories or attachments may result in serious injury.
• Do not use the power tool for any purpose other than that for which it was designed.
• Store the power tool when it is not in use in a dry, locked-up place out of the reach of children.

Additional Safety Precautions for Angle Grinders

• Always use a wheel guard. The wheel guard helps to protect you from flying particles and sparks.
• Make sure the wheel guard is properly installed and adjusted before using the angle grinder.
• Do not use the angle grinder with a damaged wheel guard.
• Always use a wheel of the correct size and type for the application. Do not use a wheel that is cracked, chipped, or otherwise damaged.
• Do not use the angle grinder to cut or grind metal that is painted, coated, or galvanized. The paint, coating, or galvanizing can create hazardous dust or fumes.
• Do not use the angle grinder to cut or grind concrete, masonry, or other hard materials. The angle grinder is not designed for these types of applications.
• Do not use the angle grinder to cut or grind wood. The angle grinder is not designed for these types of applications.
• Do not use the angle grinder in wet or damp conditions.
• Always wear safety glasses when using the angle grinder.
• Use a face shield in addition to safety glasses when working with wheels that are 9 inches (230 mm) or larger in diameter.
• Wear a dust mask when working with wheels that produce dust.
• Wear gloves to protect your hands from the heat generated by the angle grinder.
• Be aware of the sparks that are created when using the angle grinder. These sparks can start fires.
• Do not use the angle grinder near flammable materials.
• Turn off the angle grinder and disconnect the battery when you are not using it, when you are changing accessories, or when you are making adjustments.
• Allow the angle grinder to cool down before storing it.

Before Use

• Read the safety instructions and the operator's manual carefully before using the angle grinder.
• Make sure the angle grinder is properly assembled and adjusted.
• Make sure the battery is properly installed in the angle grinder.
• Check the work area for any hazards such as loose objects, uneven surfaces, and power lines.
• Make sure the angle grinder is turned off before connecting the battery.

Troubleshooting

• If the angle grinder does not start, make sure the battery is properly installed and charged.
• If the angle grinder starts but does not run smoothly, make sure the wheel is properly installed and tightened.
• If the angle grinder vibrates excessively, make sure the wheel is balanced.
• If the angle grinder overheats, turn it off and allow it to cool down before continuing to use it.

Maintenance

• Clean the angle grinder after each use.
• Inspect the angle grinder for any damage. If the angle grinder is damaged, do not use it.
• Replace