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Angle grinders are indispensable tools for a wide range of projects, from cutting metal and tile to grinding welds and polishing surfaces. The sheer versatility makes them a staple in workshops and construction sites alike.
However, the market is saturated with options, making it challenging to discern quality from compromise. Choosing the best angle grinders is crucial, as it directly impacts efficiency, safety, and the lifespan of the tool.
This review article aims to simplify the selection process. We understand the importance of balancing performance with value.
Investing in the best angle grinders means investing in a reliable and durable tool that can withstand demanding tasks. We’ll guide you through the key considerations to ensure you make an informed decision.
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IN THIS ARTICLE
Top 10 Angle Grinders Compared
DEWALT Angle Grinder
- Powerful 11 Amp motor.
- Dust ejection system enhances durability.
- Quick-change wheel release simplifies wheel changes.
- One-Touch Guard provides easy guard adjustments.
4.6/5
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DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless
- Brushless motor for increased lifespan and reduced maintenance
- Rapid brake system for enhanced safety
- Kickback Brake to minimize injury during bind-up events
- E-Switch Protection prevents accidental restarts
4.4/5
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Bosch GWS8-45 4-1/2 In. Angle Grinder
- Powerful 7.5 amp motor
- Comfortable slim-grip design
- Durable construction with dust protection
- Two-position side handle for better control
4.6/5
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AVID POWER Angle Grinder
- Powerful 7.5 Amp motor.
- Lightweight and ergonomic design.
- Includes multiple grinding/cutting wheels and flap disc.
- Two-position auxiliary handle for improved control.
4.8/5
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DEWALT Angle Grinder
- Powerful 7 amp motor for efficient material removal.
- One-Touch guard for quick and easy adjustments.
- Tool-free wheel release for convenient wheel changes.
- Hex wrench instead of a specialized spanner wrench.
4.7/5
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WEN 944 7-Amp Angle Grinder
- Powerful 7-amp motor provides high RPM.
- Lightweight design and rubber grip enhance comfort.
- Arbor adapter increases grinding wheel compatibility.
- Reversible handle offers left or right-handed operation.
4.5/5
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DEWALT 20V MAX 4-1/2 Inch Cordless Angle Grinder
- Quick-Change wheel release for tool-free wheel changes
- Tool-free guard adjustment for easy positioning
- 8,000 rpm motor provides sufficient power for most applications
- 2-finger trigger switch with lock-off for comfortable use
4.5/5
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Metabo HPT 4-1/2-Inch Angle Grinder
- Includes grinding wheels and carrying case.
- Relatively lightweight at 4.0 lbs.
- Spindle lock for easy disc changes.
- Removable side handle for both right and left-handed use.
4.7/5
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AVID POWER Angle Grinder 4-1/2 Inch 8.0 Amp 1000W Electric Grinder Tool 7-Variable-Speed Metal Grinder
- Powerful 1,000W motor with variable speed control.
- Paddle switch with lock-on button for comfortable extended use.
- Safety features include a wheel guard and extended body.
- Easy wheel changes with integrated spindle lock.
4.5/5
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Makita 9557PBX1 4-1/2″ Paddle Switch Cut-Off/Angle
- Powerful 7.5 AMP motor in a compact design.
- Comfortable small diameter barrel grip.
- Effective dust and debris protection via labyrinth construction and zig-zag varnish.
- Includes a variety of accessories (grinding wheels, diamond blade).
4.6/5
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Detailed Reviews of the Best Angle Grinders
DEWALT Angle Grinder – Powerful 11 Amp motor.
The DEWALT angle grinder offers a blend of power and user-friendly features. Its 11 Amp motor delivers ample power for various grinding tasks, while the dust ejection system aims to improve the tool’s longevity by minimizing dust accumulation. The oversized brushes contribute to extended brush life, potentially reducing maintenance frequency.
The one-touch guard adjustment and quick-change wheel release are convenient features that enhance usability. The grinder’s design incorporates a small gripping surface and an ergonomically designed side handle, prioritizing user comfort. The auto-off brushes serve as a preventative measure against tool damage.
Overall, this grinder seems well-equipped for both performance and durability, making it a potentially valuable addition to a user’s toolkit.
Pros
- Powerful 11 Amp motor.
- Dust ejection system enhances durability.
- Quick-change wheel release simplifies wheel changes.
- One-Touch Guard provides easy guard adjustments.
- Ergonomic design and comfortable grip.
- Auto-off brushes protect the tool from damage.
Cons
- While the small grip is comfortable for some, it might feel less secure for users with larger hands.
- The dust ejection system effectiveness may vary depending on the type of material being ground.
DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless – Brushless motor for increased lifespan and reduced maintenance
This DEWALT angle grinder boasts several safety and convenience features. The brushless motor aims to improve tool longevity and reduce maintenance. The rapid brake system, stopping the wheel in under 2 seconds, is a significant safety addition.
The kickback brake is designed to mitigate potential hazards during operation. The E-Switch Protection adds another layer of safety by preventing accidental restarts after power interruptions. The two-stage trigger further enhances safety by requiring deliberate action to start the tool.
While potentially adding complexity to simple tasks, these features position this grinder as a safety-conscious option.
Pros
- Brushless motor for increased lifespan and reduced maintenance
- Rapid brake system for enhanced safety
- Kickback Brake to minimize injury during bind-up events
- E-Switch Protection prevents accidental restarts
- Two-stage trigger adds another layer of safety.
Cons
- Two-stage trigger may slow down certain operations.
- Potentially higher upfront cost compared to brushed motor grinders.
Bosch GWS8-45 4-1/2 In. Angle Grinder – Powerful 7.5 amp motor
This angle grinder boasts a powerful 7.5 amp motor capable of delivering 11,000 no-load rpm, making it suitable for various grinding and cutting tasks. The slim-grip design appears to enhance user comfort during extended use. Durability seems to be a key focus, with features such as durable carbon brushes, directed air flow to protect internal components from dust, and a burst-protection guard for user safety.
The two-position side handle offers increased control, while the large spindle lock simplifies disc changes. A noteworthy feature is the “Service Minder” brushes, which stop the grinder when maintenance is needed, preventing potential damage. Overall, this grinder seems well-equipped for both professional and DIY users.
Pros
- Powerful 7.5 amp motor
- Comfortable slim-grip design
- Durable construction with dust protection
- Two-position side handle for better control
- Easy disc changes with large spindle lock
- Service Minder brushes prevent damage
Cons
- May be heavier than lower-powered models
- The “Service Minder” feature may require more frequent brush replacements
AVID POWER Angle Grinder – Powerful 7.5 Amp motor.
This angle grinder offers a decent amount of power for its size, thanks to its 7.5 Amp motor. The 12000 RPM no-load speed should be sufficient for many grinding and cutting tasks. The slim and lightweight design is a plus for maneuverability and reducing user fatigue.
The inclusion of multiple grinding and cutting wheels, along with a flap disc, is a nice bonus, providing some immediate versatility. The two-position auxiliary handle is useful for adapting to different working angles. Safety is addressed with a protective cover, which is essential for preventing injuries.
The spindle lock simplifies wheel changes, making the tool more user-friendly. Overall, this appears to be a suitable grinder for both DIY enthusiasts and professionals needing a portable option. Remember to always use appropriate safety gear.
Pros
- Powerful 7.5 Amp motor.
- Lightweight and ergonomic design.
- Includes multiple grinding/cutting wheels and flap disc.
- Two-position auxiliary handle for improved control.
- Spindle lock for easy wheel changes.
- Protective cover for safety.
Cons
- Only includes 2 grinding and 2 cutting wheels; more may be needed depending on usage.
- Durability of components is unknown without long-term use.
DEWALT Angle Grinder – Powerful 7 amp motor for efficient material removal.
This angle grinder offers a blend of power and convenience, making it a potential asset for various grinding and cutting tasks. The 7 amp, 12,000 rpm motor appears robust, promising efficient material removal. The one-touch guard adjustment and tool-free wheel release are welcome features that enhance usability and save time.
The inclusion of a hex wrench instead of a spanner wrench is practical, assuming users already possess a set. The 2-position side handle contributes to user comfort and control, while the slim design aims for better ergonomics during extended use. The compatibility with common 4-1/2 inch accessories is a definite plus.
However, potential buyers should consider the AC/DC power requirement, as it might limit portability compared to cordless options. Overall, it presents a solid set of features for its class.
Pros
- Powerful 7 amp motor for efficient material removal.
- One-Touch guard for quick and easy adjustments.
- Tool-free wheel release for convenient wheel changes.
- Hex wrench instead of a specialized spanner wrench.
- Ergonomic design and 2-position side handle for enhanced comfort.
- Compatible with standard 4-1/2 inch accessories.
Cons
- Requires AC/DC power, limiting portability compared to cordless options.
- No accessories are included
WEN 944 7-Amp Angle Grinder – Powerful 7-amp motor provides high RPM.
This angle grinder boasts a 7-amp motor capable of reaching speeds up to 11,000 RPM. Its lightweight construction, coupled with a rubber grip, aims to provide comfortable handling during extended use. A notable feature is the adaptable arbor, accommodating both 5/8 and 7/8-inch arbor grinding wheels, offering versatility in tool selection.
The reversible handle adds to user convenience, allowing for left or right-handed operation. The inclusion of a two-year warranty provides some assurance regarding the product’s durability and manufacturer support. Overall, this grinder appears to offer a balance of power, usability, and adaptability for various grinding tasks.
Potential buyers should consider the motor amperage in relation to their specific project requirements.
Pros
- Powerful 7-amp motor provides high RPM.
- Lightweight design and rubber grip enhance comfort.
- Arbor adapter increases grinding wheel compatibility.
- Reversible handle offers left or right-handed operation.
- Two-year warranty provides peace of mind.
Cons
- 7-amp motor might be insufficient for heavy-duty applications.
- The longevity of the motor is not certain (warranty will cover potential failures though).
DEWALT 20V MAX 4-1/2 Inch Cordless Angle Grinder – Quick-Change wheel release for tool-free wheel changes
The DEWALT angle grinder appears to be a solid mid-range option. The 8,000 rpm motor seems adequate for general cutting and grinding tasks. The Quick-Change wheel release is a definite plus, simplifying wheel changes significantly.
The tool-free guard adjustment is also a welcomed feature, making adjustments quick and convenient. The 2-finger trigger switch with lock-off offers comfortable operation. The inclusion of a 2-position side handle adds to the grinder’s versatility and control during use.
However, potential buyers should consider the corded nature of this tool and evaluate if the 8,000 rpm is sufficient for their more demanding applications. Overall, it seems like a well-designed and user-friendly angle grinder.
Pros
- Quick-Change wheel release for tool-free wheel changes
- Tool-free guard adjustment for easy positioning
- 8,000 rpm motor provides sufficient power for most applications
- 2-finger trigger switch with lock-off for comfortable use
- 2-position side handle for enhanced control and versatility
Cons
- Corded operation limits mobility
- 8,000 rpm might not be sufficient for heavy-duty tasks
Metabo HPT 4-1/2-Inch Angle Grinder – Includes grinding wheels and carrying case.
This 4 1/2″ angle grinder comes with a 6.2 Amp motor, five grinding wheels, and a carrying case, making it a decent starter kit. The 980W motor appears capable for common grinding tasks. The spindle lock is a convenient feature for changing discs quickly.
Safety is addressed with a left-mounted slide switch with a quick-off function. The grinder includes a removable, forward-canted side handle suitable for both right and left-handed users. Its lightweight design at 4.0 lbs should reduce user fatigue during extended use, further aided by the smaller grip.
The low-profile gear case is useful for working in confined spaces. While the 1-year warranty provides some assurance, the grinder’s long-term durability remains to be seen. The labyrinth design is aimed at improved dust resistance.
Pros
- Includes grinding wheels and carrying case.
- Relatively lightweight at 4.0 lbs.
- Spindle lock for easy disc changes.
- Removable side handle for both right and left-handed use.
- Low-profile gear case for tight spaces.
Cons
- Only a 1-year warranty.
- Durability is not clear, long term performance to be determined.
AVID POWER Angle Grinder 4-1/2 Inch 8.0 Amp 1000W Electric Grinder Tool 7-Variable-Speed Metal Grinder – Powerful 1,000W motor with variable speed control.
This 4-1/2 inch angle grinder features a robust 1,000W motor and a variable speed range from 3,000 to 11,500 RPM, catering to diverse cutting and grinding tasks. The paddle switch with a lock-on button enhances user comfort during extended use. Safety is addressed with a wheel guard and an extended body design.
The tool includes a spindle lock for easy wheel changes and a 2-position handle for improved control. The package comes with cutting and grinding wheels, a lock nut wrench, a side handle, and a spare carbon brush. Overall, this grinder offers a balance of power, safety, and convenience.
Pros
- Powerful 1,000W motor with variable speed control.
- Paddle switch with lock-on button for comfortable extended use.
- Safety features include a wheel guard and extended body.
- Easy wheel changes with integrated spindle lock.
- 2-position handle enhances control and usability.
- Includes cutting and grinding wheels, ready to use.
Cons
- Paddle switch might not be preferred by all users.
- Quality of included cutting/grinding wheels may vary; consider upgrading for demanding tasks.
Makita 9557PBX1 4-1/2″ Paddle Switch Cut-Off/Angle – Powerful 7.5 AMP motor in a compact design.
This 4.5-inch angle grinder offers a blend of power and user-friendly design. The 7.5 AMP motor provides ample power for various grinding tasks while maintaining a compact and lightweight build at just 4.5 pounds. The small diameter barrel grip enhances comfort during extended use, and the labyrinth construction effectively protects internal components from dust and debris.
The inclusion of a lock-on/off switch is convenient for continuous operation, and the AC/DC switch adds versatility. The unit comes with a range of accessories, including grinding wheels and a diamond blade, enhancing its value. The zig-zag varnish, thicker coil wires, and all-ball bearing design contribute to the tool’s overall durability.
Pros
- Powerful 7.5 AMP motor in a compact design.
- Comfortable small diameter barrel grip.
- Effective dust and debris protection via labyrinth construction and zig-zag varnish.
- Includes a variety of accessories (grinding wheels, diamond blade).
- AC/DC switch for versatile power source options.
- Durable all-ball bearing design and metal gear housing.
Cons
- Aluminum case may be less durable than steel under heavy use.
- The abundance of included accessories might be overwhelming for beginners.
Buying Guide: What to Look For in a Angle Grinders
Understanding Angle Grinders
Angle grinders are versatile power tools used for grinding, cutting, polishing, and sanding various materials like metal, concrete, tile, and wood. Choosing the best angle grinders depends on your specific needs and the types of projects you plan to tackle. From removing rust to cutting pavers, an angle grinder can be an invaluable addition to your toolkit.
Key Features to Consider
When selecting the best angle grinders, several factors should influence your decision. Motor power (measured in amps or watts) dictates the tool’s ability to handle demanding tasks. Wheel size is another consideration; 4-1/2 inch grinders are common for general use, while larger sizes are suited for heavier duty applications. Corded vs. cordless models offer different advantages in terms of power and portability. Consider safety features like kickback control and anti-restart protection.
Corded vs. Cordless
Corded angle grinders typically offer more consistent power and are ideal for prolonged use in a workshop setting. Cordless models, on the other hand, provide greater freedom of movement and are excellent for jobs in remote locations or where access to power outlets is limited. Brushless motors in cordless models enhance runtime and durability. Ultimately, the choice depends on the balance between power, convenience, and battery life. The best angle grinders can be corded or cordless.
Safety Features
Safety should be a top priority when using angle grinders. Look for features like a quick-stop brake, kickback control, and overload protection. Always wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and hearing protection. Proper handling and maintenance are crucial for preventing accidents. A one-touch guard is useful for easy guard adjustments.
Ergonomics and Comfort
The ergonomics of an angle grinder significantly impact user fatigue and control. A comfortable grip, lightweight design, and well-balanced tool make a significant difference, especially during extended use. Consider models with vibration reduction features and adjustable side handles for enhanced comfort and control. The best angle grinders are comfortable to use, even for long periods.
Accessories and Attachments
The versatility of angle grinders can be expanded with various accessories and attachments. Grinding wheels, cutting discs, wire brushes, and polishing pads allow you to perform a wide range of tasks. Ensure that the grinder you choose is compatible with the accessories you plan to use. Some models come with a selection of accessories included, offering excellent value for money.
Frequently Asked Questions about Angle Grinders
What size angle grinder is best for general use?
A 4-1/2 inch angle grinder is generally considered the best size for general use. It strikes a good balance between power, maneuverability, and accessory availability. It’s suitable for a wide range of tasks, from grinding welds to cutting tiles. Larger grinders (5-inch, 6-inch, or 7-inch) are better suited for heavier duty applications and larger material removal, but they can be more difficult to control and require more experience to operate safely.
What is the difference between a corded and cordless angle grinder?
Corded angle grinders provide consistent and reliable power, making them ideal for long-duration tasks. They don’t require charging and are typically more powerful than cordless models at a similar price point. Cordless angle grinders offer greater portability and freedom of movement, eliminating the need for a power outlet. The runtime of a cordless grinder depends on the battery capacity and the intensity of the task.
What safety features should I look for in an angle grinder?
Essential safety features include a wheel guard to protect against debris, a spindle lock for easy wheel changes, and a two-stage trigger or lock-off switch to prevent accidental starts. Kickback control or anti-kickback technology is also valuable, as it reduces the risk of injury if the grinder binds up. Always wear safety glasses, gloves, and hearing protection when operating an angle grinder.
How do I change the grinding wheel on an angle grinder?
First, ensure the angle grinder is unplugged or the battery is removed. Locate the spindle lock button, press and hold it, and use the wrench provided to loosen the lock nut that secures the grinding wheel. Remove the lock nut and the old wheel. Install the new wheel, ensuring it’s properly seated, and re-tighten the lock nut using the wrench. Release the spindle lock button.
What type of grinding wheel should I use for different materials?
Different materials require different types of grinding wheels. For metal, use a grinding wheel designed for metal; for concrete or masonry, use a diamond grinding wheel or a masonry grinding wheel. For cutting metal, use a cut-off wheel specifically designed for metal. Always check the wheel’s label to ensure it’s compatible with the material you’re working with and that it’s rated for the grinder’s RPM.
Can I use an angle grinder to sharpen tools?
Yes, an angle grinder can be used to sharpen tools, but it requires careful technique and the right type of grinding wheel. Use a fine-grit grinding wheel designed for sharpening, and hold the tool at the correct angle against the wheel. Avoid applying too much pressure, as this can overheat and damage the tool’s edge. Practice on scrap material first to get a feel for the process.
What is the purpose of the side handle on an angle grinder?
The side handle provides increased control and stability during operation. It allows you to grip the grinder with both hands, which helps to maintain a steady grip and reduce vibration. The side handle can typically be mounted on either side of the grinder, accommodating both right-handed and left-handed users. Using the side handle is especially important when performing heavy-duty grinding or cutting tasks.
How do I maintain my angle grinder to prolong its lifespan?
Regular maintenance includes cleaning the grinder after each use to remove dust and debris, checking the power cord or battery for damage, and inspecting the grinding wheel for wear or cracks. Lubricate moving parts as needed, following the manufacturer’s instructions. Replace worn brushes if applicable, and store the grinder in a dry, safe place.
What is the difference between a flap disc and a grinding wheel?
A flap disc is an abrasive tool consisting of overlapping flaps of coated abrasive material. It is used for grinding, blending, and finishing metal. A grinding wheel is a solid abrasive wheel used for material removal, typically on metal or concrete. Flap discs are generally more flexible and provide a smoother finish compared to grinding wheels.
What does the amperage of an angle grinder motor indicate?
The amperage of an angle grinder motor indicates the amount of electrical current the motor draws. A higher amperage generally means the motor is more powerful and can handle more demanding tasks without bogging down. For heavy-duty applications, choose an angle grinder with a higher amperage motor. However, consider the power source’s capacity to handle the amperage draw.
Conclusion: The Final Verdict
This DEWALT Angle Grinder appears to be a solid and reliable tool with a focus on power, durability, and user convenience. Its features like the quick-change wheel release and dust ejection system make it a worthwhile consideration for anyone needing a dependable angle grinder.
