Top 7 Best Angle Grinder For Welding Reviews (2022 Updated)

An angle grinder is an essential, versatile power tool for all metalworkers. Whether you are searching for the best angle grinder for welding work, like quick metal preparation or removing slag, a detailed review of the 7 best-rated models can be valuable to make your final decision.

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Top 7 Best Angle Grinder For Welding 2022

Product ImageProduct NameFeaturesPrice
DEWALT DWE402Best 4-½ angle grinder for weldingSee latest Price
Bosch 1375A 4-1/2-InchThe lightest See latest Price
BLACK+DECKER BDEG400Best budgetSee latest Price
Bosch GWS18V-45 18VA High German designSee latest Price
Makita XAG04Z 18V LXT Lithium-Ion Brushless CordlessAutomatic Speed Change TechnologySee latest Price
Milwaukee 2780-20 M18 FUEL 4-1/2" / 5" GrinderPaddle Switch No-Lock See latest Price
Makita GA7021Best 7-inch Grinder for WeldingSee latest Price

Review On Top 7 Best-Rated Angle Grinders For Welding 

1. DEWALT DWE402 Angle Grinder Tool – Best 4-½ angle grinder for welding

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Specs:

  • Power source: Corded electric
  • Size: 4.5 inch
  • Dimension (LxWxH): 15.63 x 5.94 x 4.81 inches
  • Weight: 6.2 pounds
  • Speed: 11,000 RPM

Dewalt DWE402 is the best angle grinder for welders of all skill levels and working environments. Apart from its powerful 11-amp AC/DC, 11,000 RPM electric motor, it has some surprising features that you should not neglect.

Little did you know, the weight of your angle grinder determines how precise your cuts will be, how safe you can perform your work, and how comfortable you can hold it for hours. This Dewalt grinder has a compact sizing of 15.63 x 5.94 x 4.81 inches and a weight of 6.2 pounds

Thus, it is easy to maneuver for a prolonged period, even if you are new to grinders or a professional welder who often has to work with various materials or work with grinders all day. 

Additionally, this best-selling grinder also packs some convenient features that all welders love to have. For example, you can change discs/attachments quickly with no tools thanks to the Quick-Change Wheel Release. Or, you can rotate the safety guard in any direction with the 360-degree One-Touch Guard

Not only comfortable, but the Dewalt DWE402 also has a clever design that helps extend its durability. You don’t have to worry about dust or small particles hurting the internal motor, thanks to the Dust Ejection System. The brush motor itself has oversized brushes for a longer brush lifetime usage over its previous model, D28402. 

Pros:

  • Lightweight, compact, and comfortable to handle in a long period
  • Best power-to-weight/size ratio
  • Oversized brushes for longer brush lifetime usage

Cons:

  • Medium price

2. Bosch 1375A 4-1/2-Inch Angle Grinder – The lightest 

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Specs:

  • Power source: Corded electric
  • Size: 4 ½ inches
  • Dimension (LxWxH): 14.4 x 5.2 x 5.2 inches
  • Weight: 3.75 pounds
  • Speed: 11,000 RPM

A corded angle grinder is preferred over a cordless one for its outstanding performance. Since this grinder type doesn’t rely on a rechargeable battery, you can perform light-duty to heavy-duty jobs without worrying about waiting time for battery charging, extra battery cost, or extra tool weight when its battery is installed. 

Although I have a cordless grinder for quick fixes, I still use a high-quality corded one like Bosch 1375A for the majority of jobs. This is also one of the best corded angle grinders for vehicle fabricators, metal workers, plumbers, and everyone who has to use grinders daily for the following reasons.

First, it supports a disc diameter of up to 4 ½ inches, which is the most popular disc size for an angle grinder. The disc size, along with a spindle size of 5/8 to 11 inches, fits all DIY projects or general welding, cutting jobs. 

In other words, you can get your jobs done quickly, efficiently with this corded model with no arm or hand fatigues like larger grinders. Its no-load rotating speed of 11,000 RPM is sufficient for all professional cutting, grinding, and welding applications. With the grinder, you will get a free 4 ½ abrasive grinding disc to polish your metal work. 

Second, it has a 6-amp motor with an extremely small field diameter, letting you cut or grind with ease. Even if you have to get a large project done in a short time, you don’t have to feel awkward, lose balance, or have arm/hand tiredness the next day. 

Its portable weight of 3.75 pounds and two-position side handle promise to support you to finish your jobs with high precision, safety, and comfort.

Pros:

  • Fit all discs/attachments with a diameter of 4 ½ inches
  • A no-load working speed of 11,000 RPM for all professional jobs
  • A free 4 1/2-inch disc included

Con:

  • A bit hard to change the guard’s position

3. BLACK+DECKER BDEG400 Angle Grinder Tool, 4-½” – Best budget

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Specs:

  • Power source: Corded electric
  • Size: 4 ½ inches
  • Dimension (LxWxH): 12.5 x 5.19 x 4.63 inches
  • Weight: 4.39 pounds
  • Speed: 10,000 RPM

If it is your first time welding, you might want to get an affordable angle grinder that doesn’t break your bank account like the Black+Decker BDEG400. Yet, what can you expect in this item beyond its price tag? 

This grinder boasts a versatile 6-amp motor with a stable, 3-position side grip, making it an ideal pick-up for grinding, cutting, removing rust, or sharpening farm tools. 

When you need to switch from a metal cut-off disc to a grinding disc in the finishing step, you can get it done in a few seconds with the One-Touch Release button and the spindle lock. The spindle lock also gives you maximum protection as it holds the disc/accessory tightly, ensuring it won’t fall off while rotating at high speeds.  

Because tough metal cuts are dangerous, you should use the provided metal grinding disc in this product package to smoothen sharp edges. 

The tool also has a sturdy metal gear case to extend its service time. This case also ensures that your tool is always protected from rusting. 

Pros:

  • Inexpensive, suitable for beginners or welders with a limited budget
  • Metal gear case for extra durability 
  • 3-position grip for extra stability and comfort
  • 2-year limited warranty

Cons:

  • No carrying case
  • The guard is not adjustable

4. Bosch GWS18V-45 18V 4-½” Angle Grinder – A High German design

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Specs:

  • Power: Battery-powered
  • Size: 4 ½ inches
  • Dimension (LxWxH): 12.5 x 2.8 x 3.7 inches
  • Weight: 5 pounds
  • Speed: 10,000 RPM

The Bosch GWS18V-45 receives positive feedbacks from professional welders for its excellent build quality, battery capacity, smooth operation, and extended tool life. This isn’t coincident, as this German brand’s mechanical products always have a good reputation among professional craftspeople. 

Unlike the dominating brushless designs, this Bosch angle grinder chooses the traditional brush option, with four brushes to last a lifetime. The brushed motor provides a maximum no-load speed of 10,000 RPM, which is impressive for an 18-Volt system

But the most remarkable point here is that it features the exclusive Electronic Cell Protection (ECP) and Electronic Motor Protection (EMP) from Bosch. 

ECP aims to prevent the battery cells from over-discharging, overloading, and overheating, thus lessening the extra cost for battery replacement and extending the battery’s active hours. Similarly, EMP doubles the tool’s runtime and protects the motor from damages when performing demanding jobs.   

You can entirely focus on your welding jobs with no worry. This battery-powered grinder offers a two-position side handle to let you in your most natural positions with minimal vibration. You can change discs/attachments in a blink, even when wearing gloves, thanks to its large spindle lock.  

Pros:

  • Made in Germany with high German standards
  • Four-brush motor design
  • Bosch’s Electronic Cell Protection and Electronic Motor Protection
  • Large spindle lock for quick disc/attachment swap

Cons:

  • No battery or charger included
  • No dust extraction cover

5. Makita XAG04Z 18V LXT Lithium-Ion Brushless Cordless – Automatic Speed Change Technology

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Specs:

  • Power: Battery-powered
  • Size: 4 ½ – 5 inches
  • Dimension (LxWxH): 8.4 x 13.3 x 5.5 inches
  • Weight: 4.8 pounds
  • Speed: 8,500 RPM

Makita has always been a golden choice on any worksite with professional craftsmen. This Makita grinder accepts all grinding/cutting discs with a diameter of 4.5 inches to 5 inches, allowing you to have a wider disc choice for more tasks than those limited with 4.5-inch discs.

The first noticeable strong plus of the XAG04Z is that it features a high-efficient BL brushless motor for 50% longer runtime per charge and cooler operation. 

Plus, while most angle grinders on the market have only one speed setting, this item features the Automatic Speed Change Technology, letting you optimize the appropriate working speed and torque for various applications, like removing rust on old furniture, preparing surfaces for painting, welding and polishing metalworks, and even knife making.

Safety is another reason that persuaded me to use this cordless angle grinder. 

When it faces a material or surface that is harder than its cutting capability or when the wheel is suddenly stopped, the Active Feedback-sensing Technology (AFT) will instantly turn off the tool to avoid severe accidents to you and damages to the tool. Thus, you can focus on your work without worrying about those sudden events. 

Pros:

  • High-efficient BL brushless motor 
  • Automatic Speed Change Technology for optimum performance
  • Active Feedback-sensing Technology 
  • LED battery indicator

Con:

  • Short battery life

6. Milwaukee 2780-20 M18 FUEL 4-1/2″ / 5″ Grinder – Paddle Switch No-Lock 

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Specs:

  • Power: Battery-powered
  • Size: 4 ½ / 5 inches
  • Dimension (LxWxH): 15 x 8 x 3 inches
  • Weight: 5.18 pounds
  • Speed: 8,500 RPM

Warranty is an essential factor you should consider when picking the best angle grinder for welding or other applications. This Milwaukee grinder comes with a 5-year limited warranty, which is much longer than many other models (typically from 1 to 3 years). A longer warranty time means that you have more confidence in using this powerful tool for your work, bearing in mind that you can contact Milwaukee’s technical support whenever you want. 

If you don’t want to utilize its warranty policy, this Milwaukee grinder is designed with sturdy metal housing and a gear system that can last for a lifetime. 

It is also packed with a brushless motor that can last up to 10 times more than standard items on the market. This high-efficient motor can minimize noise and is also powerful enough for handling heavy-duty cutting or grinding operations.  

If you work on hard materials like ceramic tile, masonry, and metal, a convenient cordless angle grinder like Milwaukee 2780-20 is an ideal choice for you. Because you can use 4.5-inch or 5-inch wheels, you can be more flexible for many DIY home projects or metal fabrication shop work. Its slim body and extra paddling handle allow you to hold and control the tool easily, even if you have sweaty hands. 

Pros:

  • 5-year limited warranty 
  • Sturdy construction with metal housing and a gear system
  • Two wheel choices – 4.5-inch or 5-inch wheels 

Cons:

  • Only have a single-speed option
  • The battery might drain fast

7. Makita GA7021 – Best 7-inch Grinder for Welding

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Specs:

  • Power: Corded electric
  • Size: 7 inches
  • Dimension (LxWxH): 21.25 x 9.25 x 7 inches
  • Weight: 15.4 pounds
  • Speed: 6,600 RPM

This 7″ heavy-duty angle grinder from Makita runs on a robust 15-amp, 2,200W motor with a no-load rated speed of 6,600 RPM for the toughest industrial applications. Since it has two power options – either AC (Active Current) or DC (Direct Current), you can also utilize it for quick fixes at home or have more freedom when using this tool with various power supplies. 

Another advantage of this item is that it supports discs up to 7 inches in diameter. For an angle grinder, a bigger supported disc diameter means that you can use the tool for cutting, sanding, or welding thicker materials or larger areas with less time and labor effort than smaller ones. 

The tool-less wheel guard adjustments, 90-degree switch handle, and 3-position side handle mean that you can adjust the tool to make you most comfortable and safe while performing demanding jobs. 

Remember to make the guard, the side handle, and your hands well-aligned on the same side so that this guard can better protect you from hot metal sparks or broken wheel fragments.  

Pros:

  • A powerful 15-amp motor for industrial applications
  • Two power options (AC/DC) with a switch 
  • Maximize your comfort and safety with the adjustable wheel guard, 90-degree switch handle, and 3-position side handle

Con:

  • Too heavy to handle for a long time (15.4 pounds)

FAQs

1. What are two types of grinders used by welders?

Angle grinders and bench grinders are two essential types that professional welders can live without.  

2. Can you cut welds with a grinder?

You can effectively remove and smooth welds with a grinder as long as you match the tool with appropriate discs and materials.  

3. How to choose angle grinder size?

There are three most common sizes – 4 ½-inch (115mm), 5-inch 125mm), and 9-inch (230mm). You can choose the size of an angle grinder based on the tasks that you often have to handle. 

For example, a 9-inch angle grinder can easily cut through deeper and harder materials, but it is relatively heavy and quickly causes hand fatigue when used for several hours. 

The small 4 ½-inch grinders are lightweight, making them easy to maneuver for light to medium-duty jobs, but they are not efficient for tackling heavy-duty jobs due to their limited working depths.

4. What size angle grinder for welding?

You should choose an angle grinder with a maximum disc diameter of 4 ½ inches for general welding purposes. It is affordable and ensures optimum performance while avoiding hand fatigue when you have to hold the tool for a long time.  

Check more: Top 7 Best Pneumatic Angle Grinder

My Top Pick 

Welding with a circular saw is the unsurpassed option. Still, if you don’t have much experience in using saws or you want a convenient solution for welding and other metal fabrication jobs, an angle grinder is an excellent alternative for DIY hobbyists or professional welders. 

Dewalt DWE402 is my best angle grinder for welding purposes. It is compatible with a popular disc size of 4.5 inches. It also has a compact design and a robust electric motor that can handle most cutting/grinding jobs with the best power to weight/size ratio. 

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