For welders, a reliable angle grinder is as essential as a welding machine. We’ve reviewed the 10 best angle grinder for welding options to help you find the perfect tool for your workshop.
An angle grinder is a versatile power tool used for cutting, grinding, and polishing. When it comes to welding, a high-quality angle grinder is crucial for preparing metal surfaces, grinding down welds, and shaping materials with precision. This tool’s importance cannot be overstated, as it ensures a clean, strong weld and a professional finish. It saves time and effort, making it a must-have for both professional welders and hobbyists. A robust tool with the right features can significantly improve the quality and efficiency of your work.
To help you navigate the many options on the market, we have compiled a detailed guide featuring in-depth reviews of the top models. Our selections are based on performance, durability, and key features that matter most to welders. Ultimately, this article will help you make an informed decision and invest in a tool that stands up to the rigors of welding tasks.
Top 5 Best Angle Grinder for Welding
10 Best Angle Grinder for Welding Review
1. DEWALT DCG413B 20V MAX* Angle Grinder
The DEWALT DCG413B is a powerful and versatile cordless angle grinder designed for both professional and DIY welders. This tool is ideal for anyone who needs to grind, cut, or prepare metal in locations where a power outlet isn’t readily available. Its main selling point is the combination of its brushless motor, which ensures longer tool life, and an advanced kickback brake system that significantly enhances user safety.
Equipped with an electronic brake that stops the wheel in under two seconds, this grinder provides an unmatched level of safety. The E-Switch Protection feature prevents accidental startup after a power interruption, a valuable addition for safety-conscious users. While its paddle switch is easy to use, the tool-only purchase means you’ll need to already own or purchase a separate DEWALT 20V battery. Nonetheless, its performance for surface preparation and weld grinding is excellent.
Ultimately, this model is a top choice for professionals prioritizing safety and cordless convenience. The DEWALT DCG413B delivers strong performance and peace of mind, making it a reliable partner for your most demanding projects. Its robust safety features make it an especially great fit for those working on complex, high-risk welding jobs.
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2. Makita XAG04Z 18V LXT® Cordless Angle Grinder
The Makita XAG04Z is a top-tier cordless angle grinder for those who demand efficiency and advanced technology. This tool is built for a wide range of metalworking applications, including grinding and cutting welds, making it perfect for both workshop and field use. Its standout feature is the Automatic Speed Change technology, which automatically adjusts power and speed for peak performance, ensuring it handles tough tasks without bogging down.
This model features a highly efficient brushless motor that runs cooler and provides up to 50% longer run time per charge compared to brushed models. It also includes Active Feedback-sensing Technology (AFT), which shuts off the motor if the wheel rotation is suddenly stopped, protecting both the tool and the user. The tool has great ergonomics but is also sold as a bare tool, so batteries and a charger are an additional purchase, which can be a drawback for new users.
For welders who already own Makita’s 18V battery system, the XAG04Z is an outstanding investment. Its intelligent features and long-lasting performance make it one of the most reliable and user-friendly options on the market. This grinder is best suited for professionals who value advanced safety and efficiency in their tools.
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3. Milwaukee 2880-20 M18 FUEL Cordless Angle Grinder
The Milwaukee 2880-20 is a robust and powerful cordless angle grinder designed to handle the most demanding grinding and cutting applications. As part of the M18 FUEL lineup, it is tailored for professional tradespeople, particularly those in welding and fabrication. Its main selling point is its exceptional power and cordless mobility, allowing users to move freely on the job site without being restricted by cords or outlets. The paddle switch offers convenience and safety during use.
This model features an electronic clutch that provides kickback protection, which is crucial for preventing injuries and damage to the workpiece. It also includes overload protection to maximize the life of the motor. The anti-vibration side handle significantly reduces user fatigue, making it comfortable to use for extended periods. One minor drawback is that it is a bare tool, so you will need to purchase Milwaukee M18 batteries and a charger separately, which is a consideration for new users.
For those invested in the Milwaukee M18 system, the 2880-20 is a powerhouse that delivers on its promises. It offers a perfect balance of performance, user comfort, and safety features. This grinder is best for welders who need a reliable and powerful tool that can handle heavy-duty tasks with ease and confidence.
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4. Bosch GWS8-45 4-1/2 In. Angle Grinder
The Bosch GWS8-45 is a reliable and affordable corded angle grinder, making it a great entry-level option for welders and hobbyists. Its primary selling point is its powerful 7.5 amp motor, which provides 11,000 RPM for tackling demanding grinding and cutting tasks. The slim-grip design ensures comfortable handling and reduced fatigue, which is a major plus for extended use in the workshop.
A notable feature of this grinder is the directed air flow, which helps to divert dust and debris away from vital components, extending the tool’s lifespan. It also includes a burst-protection guard for enhanced user security and a two-position side handle for improved control. The corded nature means it’s limited by the length of the cord, which can be an inconvenience for fieldwork. Additionally, it lacks some of the advanced safety electronics found in more expensive cordless models.
This Bosch angle grinder is an excellent value for those who don’t need the mobility of a cordless tool. It is perfect for workshop settings where a consistent power source is available. Its durable construction and user-friendly features make it a dependable choice for general-purpose grinding and welding preparation. It offers a perfect balance of price and performance for most users.
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5. Metabo HPT G12SR4 4-1/2-Inch Angle Grinder
The Metabo HPT G12SR4 is a fantastic budget-friendly angle grinder that comes with everything you need to get started. Its main selling point is the inclusion of five grinding wheels and a hard case, providing exceptional value right out of the box. This makes it an ideal choice for beginners and DIY enthusiasts who are looking for a complete kit without a hefty price tag. It is a lightweight and compact tool, making it easy to maneuver in tight spaces.
Despite its low price, this grinder is powered by a solid 6.2 amp motor with 980W of max output power, which is sufficient for most light to medium-duty welding and grinding tasks. It features a spindle lock for quick disc changes and a removable side handle for improved control and comfort. The smaller grip is also designed to reduce fatigue. While it performs well for its class, the motor may struggle with heavy, continuous grinding, and it is a corded model, limiting its portability.
Overall, the Metabo HPT G12SR4 is a great choice for hobbyists or those who need a dependable, all-in-one solution for occasional use. Its compact design and included accessories make it a highly convenient and economical option. For simple weld clean-up or small fabrication jobs, this grinder provides an excellent balance of cost and functionality.
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6. DEWALT DWE402 Angle Grinder
The DEWALT DWE402 is a best-selling corded angle grinder that professionals trust for its exceptional durability and power. This tool is built to handle the toughest grinding and metalworking jobs, making it a reliable choice for welders and fabricators. Its core strength lies in its 11-amp motor, which provides a high-power-to-weight ratio, allowing for efficient material removal and consistent performance on various tasks.
A standout feature is the Dust Ejection System, which significantly extends the tool’s life by preventing damaging particles from entering the motor. The oversized brushes offer double the brush life compared to previous models, reducing maintenance. The One-Touch Guard allows for easy adjustments without a tool, saving time on the job. One minor drawback is that it is a corded grinder, which can limit mobility on larger worksites and requires a consistent power source.
For those who prefer the consistent power of a corded tool, the DEWALT DWE402 is an outstanding option. Its robust construction and user-friendly features make it an ideal choice for continuous, heavy-duty work. This grinder is best suited for professional welders who need a dependable and long-lasting tool for their workshop.
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7. CRAFTSMAN CMEG100 Angle Grinder
The CRAFTSMAN CMEG100 is an excellent entry-level corded angle grinder that offers a great balance of performance and value. It’s a solid choice for homeowners and DIYers who need a reliable tool for occasional welding tasks, rust removal, or general metal fabrication. The 6-amp motor delivers a respectable 12,000 RPM, providing enough power for most grinding and cutting applications. It is lightweight and easy to handle.
This grinder features a tool-free guard for quick adjustments and a spindle lock for fast wheel changes. The three-position handle provides great control and comfort, which is especially useful for different applications and angles. The contoured overmolded handle also enhances comfort during extended use. As a corded model, its mobility is limited, and it might lack the raw power needed for continuous, heavy-duty industrial work. It is, however, a very reliable tool for its class.
For those looking for a dependable and simple-to-use grinder for their home workshop, the CRAFTSMAN CMEG100 is an ideal solution. It is a no-frills tool that delivers on its promises, making it a great value for the price. This grinder is perfect for anyone just starting with welding and metalwork who doesn’t need all the bells and whistles of a professional-grade model.
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8. AVID POWER 7.5-Amp Angle Grinder
The AVID POWER Angle Grinder is an excellent choice for budget-conscious welders and DIYers who need a complete kit. Its main selling point is the impressive package deal, which includes a variety of grinding and cutting wheels, a flap disc, and an auxiliary handle. This makes it an incredibly convenient and cost-effective solution for a wide range of tasks, from grinding welds to polishing metal surfaces. It offers a powerful 7.5-amp motor that can produce a no-load speed of 12,000 RPM, providing ample power for most applications.
This grinder features an ergonomic and slim design that is lightweight and comfortable to use, reducing fatigue during long jobs. The spindle lock allows for quick and easy abrasive wheel changes. A safety cover is also included to protect you from sparks and chips during operation. However, the build quality may not be as robust as some of the more expensive professional brands, and it is a corded tool, which means you will be tied to a power outlet.
For those looking for an all-in-one solution for their home workshop, the AVID POWER Angle Grinder is a fantastic value. Its comprehensive kit and solid performance make it a great option for a variety of tasks. This grinder is best suited for hobbyists and light-duty work where convenience and affordability are top priorities.
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9. WEN 944 7-Amp Angle Grinder
The WEN 944 is a simple and effective corded angle grinder that offers a powerful performance at a very accessible price point. This tool is a perfect fit for DIY enthusiasts and homeowners who need a no-nonsense grinder for various tasks around the garage or workshop, including occasional weld grinding and metal shaping. Its key selling point is its incredible value for money, combining a strong 7-amp motor with a user-friendly design.
With a motor that generates up to 11,000 RPM, the WEN 944 can handle a variety of materials with ease. Its lightweight design and rubber grip lining provide maximum comfort during operation, reducing hand fatigue. The reversible handle can be attached to either side, offering great versatility for both left and right-handed users. The arbor adapter is a convenient feature that allows it to accept grinding wheels with different arbor sizes. A minor drawback is that it may lack the power and durability of professional-grade tools for continuous, industrial use.
Overall, the WEN 944 is a solid, budget-friendly option for light to medium-duty tasks. It’s a fantastic grinder for those who are just starting out with metalworking and don’t want to invest heavily in a tool. It performs well for its price and is a reliable tool for general home and hobbyist use.
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10. AOBEN Cordless Angle Grinder
The AOBEN Cordless Angle Grinder is a standout option for those seeking a highly versatile and convenient tool without a professional price tag. Its primary selling point is the inclusion of two large-capacity batteries and a fast charger, providing excellent value and extended runtime right out of the box. The tool is perfect for DIYers and hobbyists who need the flexibility of a cordless tool for various projects, from grinding welds to polishing surfaces.
This grinder features a brushless motor, which ensures longer tool life and better performance. It also offers three adjustable speeds, allowing you to match the speed to the task, whether you’re cutting metal or doing fine polishing. The two included wheel guards and a compact design provide safety and comfortable handling. A minor drawback is that while the motor is efficient, it may not have the sheer power of some industrial-grade models for the most heavy-duty applications, and it is a new brand compared to established names.
Ultimately, the AOBEN cordless angle grinder is a fantastic kit for anyone looking for a reliable and easy-to-use tool for home or hobbyist use. Its all-in-one package and flexible speed settings make it a great choice for a wide range of tasks. This grinder is best suited for those who value cordless convenience and a complete package that is ready to use immediately.
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How to Choose the Best Angle Grinder for Welding
An angle grinder is a handheld power tool used for grinding and polishing. For welders, its primary purpose is to prepare metal surfaces for welding by cleaning off rust or paint and to finish welds by smoothing them down for a professional look. Choosing the right angle grinder is critical for both safety and the quality of your work. It’s important to understand the features that directly impact performance and usability. For a deeper understanding of this versatile tool, you can check out this angle grinder guide.
Power Source: Corded vs. Cordless
Corded angle grinders offer consistent power without worrying about battery life, making them ideal for continuous work in a fixed location like a workshop. Cordless models, on the other hand, provide unmatched mobility and are perfect for field work or projects where power outlets are not easily accessible. When choosing, consider your typical work environment and the duration of your tasks.
Motor Type: Brushless vs. Brushed
Brushless motors are more efficient, run cooler, and have a longer lifespan because they don’t have brushes that wear out. They are typically found in more expensive, professional-grade tools. Brushed motors are common in more affordable tools. While effective, they require periodic brush changes. For professional welders, a brushless motor offers superior durability and performance.
Safety Features
Safety is paramount when working with angle grinders. Look for features like a kickback brake, which stops the wheel instantly if it jams, and E-Clutch protection, which shuts down the motor to prevent dangerous kickback. Also, a two-stage trigger or paddle switch can prevent accidental startups. Always use a proper guard and wear appropriate personal protective equipment.
Ergonomics & Durability
The grinder’s weight, grip, and handle position significantly affect user comfort and control. A lighter tool with an anti-vibration handle can reduce fatigue during long jobs. For welders, durability is key. A rugged build with a dust ejection system or sealed electronics is crucial to withstand a dusty, harsh workshop environment.
Spindle Lock & Accessory Changes
A quick and easy way to change grinding wheels is a major convenience. Most grinders have a spindle lock button that holds the spindle in place while you loosen or tighten the nut with a wrench. Some modern designs offer tool-free changes, which can be a significant time-saver. Ensure the grinder’s arbor size is compatible with the accessories you plan to use.
Using an Angle Grinder for Weld Prep and Finishing
An angle grinder is essential for a clean, professional weld. Proper surface preparation is key to ensuring a strong, lasting bond, and the right grinding wheel can make all the difference. For example, to remove a weld, you can use a grinding disc, but for more precise removal of spot welds, you might need specific tools. To explore those options, you can read our review of the best spot weld cutters. Following your weld, an angle grinder is used to smooth and blend the bead, which is critical for appearance and structural integrity.
How to Use an Angle Grinder
A few simple steps and best practices can ensure you use your angle grinder effectively and safely for welding tasks.
- Step 1: Setup & Safety – Always wear safety glasses, gloves, and a face shield. Ensure your workpiece is clamped securely. Select the correct wheel (grinding, cutting, or flap disc) for your task and attach it using the spindle lock.
- Step 2: Core Usage – For grinding, hold the grinder at a 15-30 degree angle to the workpiece. Use a consistent, even motion to remove material. For cutting, use a steady, firm pressure perpendicular to the material.
- Step 3: Optimization & Safety – Never force the tool. The weight of the grinder and a light, steady hand should be enough. Always be aware of sparks and debris, and make sure your work area is clear of flammable materials.
- Step 4: Troubleshooting & Pro Tips – If the wheel starts to bounce, you may be applying too much pressure. For a smoother finish, consider using a flap disc after the initial grinding with a hard wheel.
Frequently Asked Questions
How do I choose the right wheel for my angle grinder?
Choosing the right wheel depends on the task. For heavy material removal and grinding down welds, use a thick grinding wheel. For cutting metal, use a thin cut-off wheel. For smoothing and finishing, a flap disc is ideal. Always check the wheel’s RPM rating to ensure it’s compatible with your grinder.
What RPM is best for welding?
For most welding-related tasks, a high RPM is preferred for faster grinding and cutting. A speed of 10,000 to 11,000 RPM is a standard for a 4.5-inch grinder and is suitable for most applications. Some advanced models offer variable speed, which is helpful for polishing or working with different materials.
How can I maintain my angle grinder for welding?
Regular maintenance is crucial for a long tool life. After each use, blow out the grinder’s air vents with an air compressor to remove metal dust and debris. Check for any damage to the guard, handle, or power cord. For brushed motors, check and replace worn brushes as needed.
Is a brushless angle grinder better for welding?
Yes, a brushless angle grinder is generally better for welding. Brushless motors provide more power, longer run time, and a longer overall lifespan without needing brush replacements. They are more efficient and can handle the demanding tasks of grinding and cutting metal with ease, making them a worthwhile investment for professional use.
What safety gear should I use with a grinder?
You should always wear a full-face shield over safety glasses to protect your eyes and face from sparks and debris. Heavy-duty work gloves are essential for protecting your hands from heat and cuts. A long-sleeve shirt and closed-toe shoes are also important. For extra precaution, always consider your surroundings and other safety equipment like the plasma cutters you use.
Final Thoughts
Choosing the best angle grinder for welding is a decision that impacts the quality and efficiency of your work. By prioritizing key features like a powerful motor, durable construction, and advanced safety features, you can ensure your tool is reliable and up to the task. Whether you choose a corded or cordless model, focusing on the tool’s intended use and performance will help you make the right choice for your needs.
For most buyers, the DEWALT DWE402 offers the best balance of performance and value with its powerful 11-amp motor and durable design. If you need the ultimate in cordless portability and safety, choose the Milwaukee 2880-20Â for its exceptional power and anti-kickback features. Both tools are solid choices for any welder.
