If you make your living with tools or you regularly use them for diy home maintenance, you probably already know that picking out a high-quality one will greatly affect the quality of your work. Today, we will talk about the best power grinders in 2017 to make that decision easier for you.
Table of Contents
- How To Choose The Right Sized Grinder
- Larger Jobs, Bigger Grinder
- Big Wheels, Deep Cuts
- Small Grinder, Faster Spin
- Grinders For Newbies
- Cordless Grinders
- Points To Consider When Choosing One
- The Value You Get For The Price
- Make and Model
- Disc Specs
- 10. Makita GA4030K 4-Inch Angle Grinder
- 9. SKIL 9296-01 7.5-Amp 4. ½ Inch Paddle Switch Angle Grinder
- 8. Metabo W9-115
- 7. Milwaukee 2780-20 M18 Fuel
- 6. Porter-Cable PC60TPAG
- 5. Dewalt DWE402
- 4. Milwaukee 2680-20
- 3. Makita GA9020
- 2. WEN 4276 6-Inch Bench Grinder
- 1. Ingersoll Rand Angle Grinder
How To Choose The Right Sized Grinder
Larger Jobs, Bigger Grinder
When talking about a grinder’s size, this is usually measured by the disc part of the machine and not the overall length or size. Of course the handle gets consequently bigger to better control the disc as it increases in size, but disc size is the primary determinant of a grinder’s size. An angle grinder’s most common size for homeowners is 4.5 inches, which is the measurement of the disc’s diameter. That’s because it’s the most efficient for the few odd woodwork jobs around the home. For larger jobs that require an angle grinder, wheel size plays an important role and the necessary size increases as the size of the job increases.
Big Wheels, Deep Cuts
If you need to cut thick and strong materials like concrete and stone, you’ll need a grinder that has a bigger disc size. Even if a smaller grinder manages to cut through your material, you’re going to spend a long time with your project. If you get a grinder with a bigger wheel, the project can be done is less time and with more ease. If you’re dealing with wood as a material, most of the grinder sizes can manage the task, it’s just a matter of thickness in choosing the right grinder size for you.
Small Grinder, Faster Spin
It’s all a matter of simple physics, really. The smaller the disc, the faster it finishes one whole spin. 4.5 inch grinders can reach speeds of over 11,000 RPM. With this speed, these small grinders can accomplish the tasks of cutting and polishing metal. However, with great power comes great setback. Smaller grinders are more susceptible to overheating as compared to their larger siblings. It’s highly recommended to get a grinder with customizable speed settings so as not to keep on using the highest setting all the time. Even though bigger grinders operate at a lower speed, they are less likely to overheat and thus will perform better.
There is, however, a little detail that you should note. The amp rating of the motor also plays a large role in the speed that a grinder can spin. Just to be sure how exactly your grinder is expected to perform, check the RPM rating.
Grinders For Newbies
If you’re new to grinders, it’s best to note the power that this tool possesses. It’s made of metallic discs that are sharp and heavy duty. You can easily see where it might pose a danger to you, especially if you’ve never handled one before. If you’re going to be using a grinder for the first time, the best advice is to start small, and always wear protective gear like a face plate and gloves (for better handling, since the grinder vibrates a lot). Don’t get a bigger grinder and attempt to use it for your first time because you’re still not used to handling one. 7 inch grinders cannot be operated by one hand, so imagine just how things could quickly get out of control. Practice with a small one first to be able to get used to the feeling of using a grinder, then move on to the bigger leagues when you’re ready.
The larger your grinder is, the more power it will require to work. So it’s not uncommon to see large grinders with high powered motors of 110 or 240 volts. This makes them pretty bulky, and nothing is more inconvenient than trying to reach into a tight workspace only to find out that the cord of your grinder is not long enough. It’s bad enough maneuvering the bulky tool in the first place. So if you see that this is a likely scenario in your near future, you might want to get a smaller grinder. These can operate on a mere 18 volts and often use a rechargeable battery for power. A lot of these are also cordless, so they’re quite convenient to use.
Points To Consider When Choosing One
The Value You Get For The Price
Value, in this sense, refers to the amount of use that you could get out of the grinder that you buy. That usually depends on the extent of work that you’re going to need it for. For home improvement purposes, a 4.5 inch angle grinder can usually get the job done. The general rule is the more specs, the more value you can get from it.
However, this does not mean that you should get the grinder that has the most specs, unless you’re going to find a use for all of those specs. It’s like buying a full kitchen appliance set when you only need a refrigerator: it’s a waste of money if you’re not going to be utilizing all or most of it. Quantity matters, but quality is just as relevant.
Dust ejection system. Spindle lock. Paddle switch. What are these specs that can often be seen on your standard angle grinder? These are the safety features, and you must keep these in consideration when choosing an angle grinder. Safety has a twofold meaning here: keeping you safe from harm, and protecting your investment with a tool that lasts longer. Find an angle grinder that has features to help keep you from getting exposed to injury like an adjustable guard.
A “dead man switch” is also necessary in the case that you think that the grinder is posing danger to you and to itself. This ensures that you don’t accidentally turn on the grinder and end up in an accident because of that mistake. Despite the presence of these safety features, it’s still best to wear the proper protective gear when using an angle grinder.
Make and Model
In searching for the right angle grinder, you will see that there are brands that have already established their name in the manufacturing of this power tool. You’ll most likely come across DeWalt, Makita, and Hitachi, all of which are pretty good and trustworthy brands.
Still, it’s going to be tricky choosing the best out of all three, as some of them may over the best quality while the other one offers the best deal and the other one has the best value. It’s all a matter of determining which one really fits your needs at the moment.
We’ve already established this in the first part of this article: you will have to choose the specs of the disc based on what you’re going to use it for. Less abrasive discs are great for polishing, while more abrasive ones are perfect for cutting and grinding even the most abrasive materials.
At the end of the day, it’s all a matter of understanding the context of the need. Knowing what you’ll be using the grinder for will help you determine the exact type and make that you should be looking for.
If you are looking for a high-quality power grinder that is easy to use then look no further from Makita GA4030K. This power grinder has a powerful built-in motor which is able to deliver 11, 000 RPM. As you can tell by this point, you won’t have much of a problem using this power grinder for any job. Usually, when working with power grinders, there is a bunch of debris and dust flying all around and sometimes that debris can end up in power grinder’s motor and break it. Makita GA4030K has a labyrinth construction reinforced with seals which prevent dirt, dust, and debris from entering the grinder.
- Great grip and comfort
- Light in weight
- Gear housing can be rotated
- Case is a bit small
This heavy-duty power grinder is packing a 7.5 Amp motor which is powerful enough to achieve 11, 000 RPMs. If you have already worked with power grinders, then you probably know that they can vibrate and sometimes they can be hard to tame. The first thing you will notice once you get your hands on this grinder is that it has a great feel to it because of the handle which is specially designed to reduce vibrations. Also, this grinder is somewhat heavy because it is housed in a heavy-duty metal gear housing which provides additional durability and stability.
- Light in weight
- Great grip
- Power grinder switches off as soon as you let go
- Great value tool
- Disc installation somewhat tricky
- Can be noisy
Metabo W9-115 sports a little higher price tag than the previous two power grinders, but it also sports a more powerful motor. With this grinder, you will be getting an 8.5 Amp motor which can generate 10, 500 RPM. If you decide to buy this tool, you will be amazed at how well it is able to perform even the most demanding jobs. This grinder is made in Germany out of top-quality materials, and it weighs only 5.8 pounds. You will feel how easy it is to handle this tool even though it delivers serious raw power able to cut through concrete.
- Easy to replace disc
- Light in weight, solidly built
- Rotatable gear housing up to 90°
- S-automatic safety clutch which controls the kickback if the grinder gets jammed
- Long spindle
- Position of on/off switch
This electric-powered power grinder packs a serious punch. It is light in weight so you won’t have to worry about losing a grip or getting tired early in the job. It has a brake feature which is able to stop the disc in a matter of seconds, and you won’t feel too much vibration when working with this grinder. Milwaukee 2780-20 M18 Fuel is a great tool for smaller jobs, and it has no cord. You can remove the handle and screw it on the other side of a grinder if your other hand is dominant. All in all a great little grinder which won’t let you down.
- Reduced vibrations
- Light in weight
- Great for smaller jobs
- Battery tends to drain out faster when grinder is under a lot of stress
This grinder comes with a 7.0 AMP motor which is able to generate 11, 000 RPM. This is more than enough power for material removal. This power grinder is enclosed in a cast metal gear case which provides great protection and durability. We all know that grinding at weird angles can be a tedious job so you will be glad to hear that you can position the side handle in three different locations for maximum handling and grip. If you are looking for a great balance of quality and price, then this power grinder might be the perfect choice for you.
- Easy to change discs
- Trigger safety
- Light in weight
- Cord ravels up
This power grinder packs a lot of power coming from its 11 AMP motor which is able to generate 11, 000 RPM. If you are looking for a power grinder tool which has a great size/weight to power ratio, then Dewalt DWE402 might be the perfect choice for you. There are countless testimonials that swear that this is the best 4.5” Dewalt grinder but we leave that up to you to decide. If you choose to go with Dewalt, you will probably make the right decision because they are the household names when it comes to power tools, especially angle power grinders powered by 11 AMP motors.
- Powerful motor
- Easy to handle
- Suitable for demanding jobs
- Paddle switch
- Might be too powerful for some minor jobs
- Somewhat heavy
Milwaukee 2680-20 is a power grinder which is easy to use and offers a great durability. It has a built-in overload protection which protects the tool and battery from damaging while performing demanding jobs. Since debris is known to break power grinders, you will be glad to hear that this grinder has L-shape vents which are designed to keep all debris particle from entering the grinder. This way, internal components will stay protected. Oh, and this tool is cordless and runs on batteries, so you won’t have to think about where to plug it when working outside.
- Light in weight
- Variables speed options
- Fast battery drainage
If none of these other grinders seem powerful enough for you, then wait until you hear about the Makita GA9020. This power grinder is powered by 15.0 AMP motor which is able to deliver more than you have bargained for. It features a protective varnish seals that protect the inner components of the tool to make it last longer. You can rotate the gear housing to adapt it to the requirements of a job.
- Made in America
- Significantly heavy
Sporting a 2.1 Amp motor, this bench grinder is designed to be lightweight yet it is not to be underestimated. It has pretty impressive precision and good visibility. You also get to choose from regular speed, slow speed or variable speed (with their price ranging from the cheapest to the most expensive).
- Lightweight and easy to hold
- Very good precision
- Easy to remove wheel guard for any changes
- Doesn’t come with a manual
- A little difficult to set up
Designed to be sturdy and durable to last you for many years to come, this grinder is popular for its all ball bearing construction and all its features. You can expect a powerful motor along with its strong aluminium housing and also, a safety lock throttle lever that helps to prevent any accidental start ups.
- Strong yet lightweight aluminium housing
- Safety lock
- Comes with a front exhaust
- Doesn’t come with wrenches or spare holder
With so many good options to choose from, it can be quite a challenge to decide which one is the best for you. First consider your budget then narrow down your choices to what specs or make and model you are after.
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