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5 Best Sanders For Deck Refinishing (2022 Review)

Do you just want to know which sander works best for deck refinishing without having to read this entire article? Makita’s 9403 4″ x 24″ belt sander is your best choice.

A very popular home project amongst modern DIY’ers is refinishing that old deck in the backyard that hasn’t been touched for years. Decks are normally built with highly durable treated woods. They add natural beauty to your home, but only as long as you diligently sand it and reapply a protective finish.

Choosing the right sander is critical when it comes to working with such a large volume of wood. The question is, what are the best sanders for deck refinishing? Let’s take a closer look at some of the intricacies of deck refinishing as well as the types of sanders you may want to use for this project.

Best sanders for deck restoration compared:

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Top Pick

The Runner-Up

Title

Makita 9403 4" x 24" Belt Sander, Teal

Makita BO5041K 5" Random Orbit Sander

Style

Belt Sander

Random Orbital Sander

Client Rating

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Check Today's Price

Check Today's Price

Top Pick

Thumbnail

Title

Makita 9403 4" x 24" Belt Sander, Teal

Style

Belt Sander

Client Rating

Learn More

Check Today's Price

The Runner-Up

Thumbnail

Title

Makita BO5041K 5" Random Orbit Sander

Style

Random Orbital Sander

Client Rating

Learn More

Check Today's Price

Keeping Your Wooden Deck Looking Good

No matter how experienced you are with woodworking, it is easy to imagine that exterior wood needs to be cleaned up from time to time in order to keep the appearance and integrity at its best.

Deck sanding is a critical part of that upkeep. I recall helping my grandfather as a kid when he would annually refinish his wood deck in the back yard. He did this before he reapplied a protective coating or when he needed to clean up an area that had become split or damaged.

Sanding after power washing

You might want to consider cleaning the wood with a power washer before proceeding to deck sanding. This is often done each year to help remove dirt build-up and small areas of staining that have accumulated since the last power cleaning.

The water from the power washer will push into the wood and cause the wood grain to raise. You can use a sander to knock down that raised grain and return the surface of your deck to a smooth texture.

Sanding before refinishing

Depending upon the coatings used and the wear it receives, you will want to completely refinish your deck every few years. When the time comes, you will need to clean your deck completely and allow it to dry. From there, you can sand off the remaining topcoat and smooth the wood grain before putting on a new protective layer.

Staying Safe As You Work

You should be able to use the same safety precautions when working on your outdoor deck as you would for any of the smaller wood projects you do in your shop. It is important to remember that these precautions are just as important in the outdoors as inside for a few reasons.

First off, the dust generated as you work will be a large volume and will still irritate your eyes and lungs. Remember that most wood used on outdoor decks are chemically treated to stand up to the elements and they may have various coatings that you have applied to them previously. That makes eye protection and a dust mask or respirator mandatory.

You should also use hearing protection as you will be operating your sander for long periods of time. High powered sanders, such as belt sanders, can generate a lot of noise. Wear a pair of earmuffs or earplugs to protect your hearing and avoid developing tinnitus.

Heavy gloves will help absorb some vibration and keep your hands protected as you work on the deck. Finally, a good pair of knee pads will keep your knees from hurting as you work across the deck from one end to the other.

What Sander To Use For Deck Restoration?

Most woods used for building decks are softer woods that can be gouged or hold sanding patterns. This tends to favor random orbital sanders or oscillating deck sanders for most of us, as these tend to leave fewer marks on the surface and are easy to control.

The problem with using random orbit sanders is that they can take a long time to cover an entire deck. Many woodworkers, therefore, prefer to use a belt type of sander when working on large projects like outdoor decks.

Belt sanders offer more sandpaper contact that takes more material off and helps to keep an even surface. They are fairly easy to learn to use, so don’t feel intimidated if it will be your first time using one.

Read on to learn more about the specific sander models that we believe to be the best choice for a deck refinishing project.

What Sandpaper Should You Use?

There are a variety of sandpapers available to use, but some are better suited to the task of deck sanding. The number of products available is beyond our discussion here, so I suggest making it as simple as possible.

Look for sandpaper that is designed to work on wood. Manufacturers will list this on the package. These will often use natural abrasives to remove material.

There are also a large number of grits available to use. You will want to start with a pass of 80 grit paper. This will remove material quickly and allow you to clean up rough spots, making an even surface.

You can then make a second pass using 150 grit sandpaper. That will knock down rough sections and give your deck a smooth surface to work with. Using 150 grit also keeps the wood pores open to accept a wider variety of protective coatings that may vary greatly in their viscosity.

Final Considerations

You will want the deck to stay dry throughout the process. These types of projects are best tackled during stretches of dry weather. If you get surprised by a storm or rainy day, just make sure that you allow the deck to dry completely before you continue with your work!

The 5 Best Sanders For Deck Refinishing Reviewed

And now let’s take a look at five different models of sanders that I believe will work best for wood deck refinishing.

1. Makita 9403 – Best Belt Sander For Deck

OVERVIEW

This powerful belt sander runs at 1,640 feet per minute, offering a lot of abrasive contact between wood and sandpaper. A four-inch-wide belt path will cover a decent amount of wood on each pass while allowing you to reach into areas that wider sanders will struggle with.

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Find More Options: Best Belt Sanders of 2022

2. Makita BO5041K – Best Random Orbital Sander For Deck

OVERVIEW

For many woodworkers, including novices, orbital sanders are easier to control than the more aggressive belt sanders. An added handle provides you with maximum control with each pass across the wood. An orbital play of 1/8th inch gives the pad plenty of movement and will help to reduce possible marking on the wood as it is sanded.

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Read More: Best Random Orbital Sanders of 2022

3.

DEWALT Random Orbital Sander, 5-Inch
OVERVIEW

The motor on this hand sander rotates between 8,000 and 12,000 OPMs, offering plenty of agitation against your deck wood. A 3.0 mp motor should allow you to keep that pace, even when you apply moderate pressure against the sander.

A dust seal has been placed over the switch, preventing debris from affecting the controls on the sander and extending its lifespan. Almost all features found on this model can be used with one hand, a feature that lets you make adjustments on the fly.

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More Similar Options: Best Palm Sanders (2022 Review)

4.

Makita Sheet Finishing Sander
OVERVIEW

This model from Makita may be ideal if you are looking to cover more wood as you sand without taking off too much at once. It is designed to use sheets on sandpaper that are locked at two ends, a feature that offers quick loading while giving play to the surface as the sander operates. The main controls are placed in easily accessible areas on the main handle.

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5.

TACKLIFE 3 x 21-inch Belt Sander

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OVERVIEW

This budget-friendly product gives woodworkers an economical option for working on their decks. Due to the size and weight, it can be moved around easily, allowing you to reach into areas that might be a struggle for heavier equipment. It has a narrow profile as well.

The dust box comes with two adaptors, making it easier to attach to a collection system.

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Smooth Finish

Of the products listed, I believe that the Makita 4″ X 24″ Belt Sander is the best sander for deck sanding, including refinishing. The belt sanding design will allow you to finish the project more quickly than an orbital type sander will. This gives it a leg up on the orbital and sheet sanders reviewed above.

Makita’s motor generates plenty of speed, moving the belt at 1,640 feet per minute. That power also allows you to apply pressure on the sander without it bogging down, unlike the other belt sander on the list.

The unit itself is easy to use and you can learn to operate it quickly. That makes this product ideal for novice and intermediate woodworkers looking to improve their wood decks.

5 Best Sanders for Deck Refinishing in 2022

We admire your sense of preparation. Here you are, getting ready to refinish your deck and you’re so thorough that you are reading reviews of sanders to get the job started right. At least we hope that’s why you’re here. The alternative is that you’re neck-deep in doing the job and are troubleshooting — as your house burns down — where it all went so very wrong.

Either way, we’ve got valuable stuff for you. We reviewed some sanders for you. We looked at both belt sanders and orbital sanders to give you a nice range in case you are thinking beyond your deck. If the model you’re looking at isn’t one of them, or in case you’re finished picking up the pieces of your shattered life and wondering how to avoid it in the future, we included some insights into how we arrived at our conclusions.

Please read on!

A Quick Look at Our Top 5 Picks for 2022:

Rating Image Product Details
Top Pick Makita 9403
  • Quiet
  • Aggressive
  • Powerful
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    If you prefer an orbital sander DEWALT DWE6423K
  • Powerful
  • Works great on non-wood projects
  • Great for precision sanding
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    Best for the Money SKIL 7510-01
  • Great for-dollar value
  • Lickity split belt replacement
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    Bosch ROS20VSC
  • Ergonomic and comfortable to use
  • Easy Disc attachment
  • Variable speed Control
    		•  CHECK PRICE
    Craftsman 7A 3X21
  • Acceptable for the job of sanding decks
  • Variable speed Control
    		•  CHECK PRICE

    The 5 Best Sanders for Deck Refinishing

    1.

    Makita 9403 Sander – Top Pick

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    The best belt sander for deck refinishing is the Makita 9403. It’s just that simple. This one will get up and get after a project, removing whatever you need removed tout suite. It’s fast, powerful and easy to control.
    It’s also quiet. And heavy. Normally, we’d downrank a tool so much heavier than the competition, but weight in a deck sander isn’t necessarily a bad thing because it aids the user in keeping the thing under control. It’s built like a tank and quiet like a ninja.

    What didn’t we like about it? The cost. It’s probably priced out of the range of anyone who is shopping on a budget. If you’re a professional, the cost is acceptable. If you’re a weekend warrior who just happens to need to sand a deck for refinishing this one time, you can get close to the Makita 9403’s performance at a much lower cost.

    Pros

    Cons

    2.

    DEWALT DWE6423K – If you prefer an orbital sander

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    If we were looking at general purpose sanders for weekend warriors, the DeWalt DWE6423K would be in the thick of the running. We loved it. In fact, we had to restrain Jerry the Intern from using it to sand random things in our test workshop. This is just a fun, fun sander to mess around it.

    It’s powerful, it works great on hard surfaces like stone, it has decent waste capture. We even liked its price.

    But … it’s just lost trying to sand a deck. The things that make this a great tool — its ability to deliver a precise, smooth surface, it’s ability to smooth out rock and concrete — are lost on a deck, which calls for a powerful, crude instrument.

    For that reason alone, because you are primarily concerned with sanding a deck, we have to downrank this. We didn’t like it, but there it is. Hold a grudge if you absolutely must.

    Pros

    Cons

    3.

    SKIL 7510-01 – Best for the Money

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    Skil’s 7510-01 has the best for-dollar value of any sander on the market. Its performance you’ll like, the price you’ll love. That’s our bottom-line take.

    We’ll start with the question of whether this is good to sand down a deck. Yes. Yes it can. It has the muscle and durability for a deck. You can pay for better, faster performance, but if it’s just a matter of whether this can do the job it’s not absolutely necessary.

    We didn’t much care for the dust collector. It had problems staying connected. That can be a messy distraction over the course of a large job like sanding a deck. We also thought that for sanding a deck, a three-inch belt translates into the job taking longer. If time is of the essence, maybe look at something with a wider belt. Despite this, we think this is the best sander for deck refinishing for the money, available this year.

    Pros

    Cons

    4.

    Bosch ROS20VSC

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    If you were a weekend warrior hoping to polish the wooden knobs on your throne room like any common local despot, the Bosch ROS20VSC would be a good choice for you to consider. It’s small, light and fits comfortably and intuitively into your hand.

    But … it’s small. We’re not talking about polishing wooden door knobs. We’re talking about sanding down a deck, probably to reseal it. That presumes that at some point in the future you’d actually like to get to lay the sealant. And if you use this Bosch oval sander to do that, you’re playing a dangerous game that the weather will turn towards winter before you get to it. On the other hand, maybe you have an unruly child practically begging for punishment of monotonous, seemingly endless busy work. This would qualify for that.

    And because it’s small, the amount of waste produced will very obviously overwhelm its storage capacity for it.

    So, as fun as this model is to use, it’s inappropriate for use as a deck sander. Go with a bigger one with a belt.

    Pros

    Cons

    5. Craftsman 7A 3X21

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    The Craftsman 7A 3×21 is a decent sander. We liked it. You can use it to sand down a deck just fine.

    It aggressively goes after whatever you’re trying to sand and has the durability to last until the job is done. It also comes with fairly decent features. It doesn’t really excel at anything, but it won’t leave your frustrated and ready to throw it against the wall, either.

    And that’s really the thing with the Craftsman 7A. It does what you’d expect, but doesn’t do it in a way that leaves you in awe of it. That’d be one thing if it was also light on the wallet, but it’s not. It’s one of the most costly models we looked at. It exists in that worst places for tools. You can either pay much less and get similar quality or pay just a little more and get exceptional.

    And that, not quality, is why we ranked it last.

    Pros

    Cons

    Buyer’s Guide – Choosing the Best Sanders for Deck Refinishing

    So you’ve read our reviews and decided that they offer some useful insights into which sander is best for your deck. In fact, you found the insights so useful that you think you want to make up your mind, rather than leave that to random Internet strangers. We get that. Random Internet strangers are strange folk. So, we’ve put together some tips in how to look for the best sander to suit your needs. The journey starts with you.

    Sanding space size

    This is no general tool review, where we tell you that an honest appraisal of what you need it for is your first step. We’ve established that you need a sander for your deck. So, the question becomes: what, honestly, do you need this for?

    Not all decks are created equally. Some decks have odd-shaped corners and differences in design. If you have detail work, you’re going to want a sander that accommodates it. If you like monotonous looking things, you’ll want a model that delivers speed and power while giving short shrift to versatility.

    Orbital vs. belt

    We’ll say it, if you’re buying a sander for your deck we would strongly advise a belt sander. Orbital sanders are cute. We want to take them home and cuddle with and coo at them. What they lack is sanding space and power. They are designed for control and precision. You want big, powerful and intimidating for a job like sanding a deck. We reviewed the DeWalt DWE6423 as a deck sander mostly out of respect for the model, not as a serious contender. It’s a great sander and if for some reason absolutely must use an orbital sander on a deck, we’d recommend it. Overall, however, we’d suggest that for the sake of your own sanity you go with belted.

    Price

    Getting a decent belt sander doesn’t mean emptying out your bank account. You can get decent quality at a pretty reasonable price, especially if deck sanding is all you’re going to do with it. Skil’s 7510-01 is a great example of a tool that’ll get the job done and make the most of the dollars you spend. Or you can open up your checking account and pay the premium price for the Makita 9403. Sometimes we’d suggest looking in the middle to match quality and price, but we found that the middle ground on sanders doesn’t offer great value.

    Conclusion

    Forget just sanding a deck, the Makita 9403 is the best sander we looked at for our reviews. It does it all and is “use it while the baby naps” quiet. You pay for it, and the cost probably puts it out of the range of hobbyists and occasional users. We strongly recommend that you use a belt sander to refinish a deck, but if you insist on buying an orbital because the other things you’ll use it for dictate it, we suggest the DeWalt DWE6423K. Skil’s 7510-01 is the best value you’re going to find on the market, but its dust collection might give you fits. If you need something for precision sanding, the Bosch ROS20VSC is ergonomic and comfortable to use; it’s just not suitable for a big job like a deck. We were mostly “meh” about the Craftsman 7A until we looked at the price tag, which gave us a case of the vapors.

    See Also: 

    Contents

    rating top 10 according to KP

    Grinding and polishing are important stages in the processing of surfaces of various kinds of workpieces made of wood, metal, plastic and other materials. The end result of these actions is a smooth, even, cleaned surface, with minimal roughness. An integral tool in these operations is a grinder. Grinding is a laborious, monotonous, unpleasant process. Modern requirements for finishing work in repair and construction have very high standards. Painfully familiar to the craftsmen, emery, fixed on a wooden beam, is gradually being replaced by grinders. Today, the market offers a wide range of modern grinding machines suitable for a wide range of tasks. Including for home use. KP has prepared the top 10 best grinders of 2022 available on the market. nine0003

    Top 10 rating according to CP version

    1. Metabo WEV 10-125 Quick

    Metabo WEV 10-125 Quick. Photo: yabdex.market.ru

    Metabo WEV 10-125 Quick belongs to the type of angle grinders (angle grinders), commonly called grinders. This name was born for this type of apparatus in the USSR because of the place of production - Bulgaria. It has cutting discs with a diameter of 125 mm. Suitable for grinding and cutting metals, stone (concrete) and softer materials. The new powerful motor, with a power consumption of 1000 W, provides high torque, designed for active use both in everyday life and for professional tasks. This grinder has a number of positive features: automatic safety clutch, full wave electronics with adjusting wheel, electronic overload protection, SDS quick lock nut, soft start and protection against accidental restart. Carbon brushes are switched off automatically, which prolongs the working life of the tool. The grinder is ergonomic - the center of gravity is well chosen. The case flaunts a non-slip coating. Maximum speed - 10500 rpm. nine. Photo: yabdex.market.ru

    The DeWALT DWE6423 grinding tool is an eccentric grinder. This type of grinder is primarily used to prepare various types of surfaces for coating with varnish, paint or primer. Grinding materials are different - stone, glass, wood, metal, plastic. ESHM are effective in polishing surfaces with a high degree of curvature and slope. Engine power is 280 watts. It is characterized by decent wear resistance and performance. The standard disc diameter is 125 mm. The device runs on 220 V, the cable length is 2.5 m. The grinder has a good dust collector, plus it can be connected to a vacuum cleaner - which will undoubtedly positively affect the cleanliness of work. An important characteristic is the low level of vibration during operation. This will increase the time of effective use of this unit. The number of revolutions is 8000-12000 rpm. In the presence of a speed controller and a comfortable grip for operation. nine0003

    Pros and cons

    Dust bag, fits comfortably in the hand, low vibration

    Uncomfortable button

    3. Makita BO3711

    Makita BO3711. Photo: yabdex.market.ru

    Makita BO3711 is a surface grinder. This type of grinding tool is also called vibrating, as the sole of the tool performs surface grinding with the help of an “anchor”, which rotates in a circle at high speed and produces vibration. The main advantage of PShM is the use of ordinary sandpaper in the work. Works great for sanding and cleaning a variety of surfaces. A special regulator will allow you to adjust the number of revolutions for the specific type of material that needs to be processed. A practical element is a bag for collecting dust, which is removed through the sanding plate. It is also possible to connect to a vacuum cleaner. It is more pleasant to work in cleanliness. Power - 190 W. The oscillation frequency at the sole is 4000-11000 counts / min. Operates from a conventional network of 220 V, wire length 2 m. Convenient trigger-type switch, you can control the tool with one hand.

    Pros and cons

    Low noise, functionality, price

    Dust collector poorly removes dust

    4. ELITECH MSHL 1200E

    ELITECH MSHL 1200E. Photo: yabdex.market.ru

    The ELITECH MSHL 1200E belt grinder, like other grinders of this type, works according to the following principle: there are two rollers at the base of the body, on which a special belt with an abrasive surface is put on. The tape rotates and in contact with the surface removes the top layer. For this model, the length of the tape is 610 mm, the width is 100 mm. This type of grinder is optimal for wood and less effective for metal and plastic. This grinding tool performs linear grinding. The grinder has a 1200W high power motor. A good solution for primary grinding and in cases where surface leveling is required. The handle, equipped with soft overlays, creates comfort in work. You can connect the tool to a vacuum cleaner, which will get rid of dust during operation. The diameter of the nozzle of the vacuum cleaner is 32 mm. Effective for cleaning large surfaces. Powered by 220 V, cord length 2.5 m.

    Pros and cons

    Power, governor location

    Noisy and heavy

    5. BOSCH GWS 9-125 S

    BOSCH GWS 9-125 S . Photo: yabdex.market.ru

    The Bosch GWS 9-125 S angle grinder has a number of advantages over the grinder of the previous model: engine power is 900 W, the efficiency level is higher, the walls are made thicker. They also improved the patency of the air outlet, which allows you to cool the engine faster. The best protection against dust. Ease of use creates a speed controller. Also available is a quick-locking nut, which allows you to change the equipment without a key. The compact gearbox housing makes it possible to work in hard-to-reach places. The grinder has an electronic speed control, as well as a spindle lock function - for easy tool changes. When working, it is necessary to use discs with a diameter of 125 mm. Power is taken from the mains 220 V.

    Pros and cons

    Speed ​​control, ease of use

    Reducer gets very hot

    6. MILITARY AG900VS

    MILITARY AG900VS. Photo: yabdex.market.ru

    The MILITARY AG900VS angle grinder is a versatile tool suitable for a wide range of jobs. Suitable for cleaning, grinding surfaces from different materials and for cutting them. This requires cutting and grinding discs. Looks great for home use. Fairly small weight. Equal 1. 9kg. The disc diameter used in this grinder is standard - 125 mm. Engine power is the same as that of the Bosch GWS 9-125 S - 900 watts. The speed of work is 12000 rpm. There is a speed controller that allows you to change the speed depending on the nature of the work. A useful function of this grinder is the speed stabilization system. It is powered by a regular network.

    Pros and cons

    Price/quality

    Stiff switch

    0007 Wert EES 125DE. Photo: yabdex.market.ru

    The Wert EES 125DE grinder can be used for grinding various surfaces: wood, metal, plastic, composite. Power consumed during operation 350 watts. What is definitely nice is the speed controller, at a fairly low price of the tool. The handle has a rubberized surface, ergonomic. The body is made of high quality materials. There is a dust collector. Quite effective, but does not remove all working dust. To work in a clean room, it is better to connect a vacuum cleaner, this possibility is provided. It is a pity that the adapter for it is not included. The engine is quite reliable, the body does not heat up much. Disc rotation speed - 13000 rpm. Powered by 220 V, cable length 2 m.

    Pros and cons

    Low cost, good workmanship

    Cord hardens in the cold

    8. Hammer MD135A

    Hammer MD135A. Photo: yabdex.market.ru

    The Hammer MD135A engraver is a representative of straight grinders. Their distinguishing feature is the design in the form of a straight elongated body at the end of which there is a grinding head with an abrasive stone of various shapes and sizes. It is very convenient for hard-to-reach places for processing parts made of metal, wood, plastic. Equipped with a 135W motor. The set includes 41 nozzles for various kinds of work and materials. There is a speed controller that ranges from 10,000 to 32,000 rpm. There is a spindle lock. In general, the grinder fits very comfortably in the hand. There is a metal pendant on the case. Rugged case included. Powered by standard power supply. nine0003

    Pros and cons

    Inexpensive for its functionality

    Weak at low speeds

    9. Interskol UPM-180/1300EM

    Interskol UPM-180/1300EM. Photo: yabdex.market.ru

    Interskol UPM-180/1300EM belongs to the type of polishing grinders. Outwardly, it resembles an angle grinder apparatus, but, as a rule, it differs in a D-shaped handle on the body. The main purpose of this tool is to delicately treat the surface. The equipment is mainly represented by circles made of felt, foam rubber and fur. Materials with more education are felt and wool. The grinder consumes 1300 watts of power. The speed ranges from 400 to 2200 rpm and is selected based on the material being processed. Nozzles are fixed with Velcro. It is powered by 220 V. Weight is 3.2 kg. The disc diameter is 180 mm. The kit includes an additional handle, a rubber polishing disc, a Velcro polishing disc, a polishing case, a wrench. nine0003

    Pros and cons

    Well equipped, soft start

    Not very common wheels compatible

    10.

    Sturm! AG1014P Sturm! AG1014P. Photo: yabdex.market.ru

    Sturm brush grinder! AG1014P is used to remove rust, old varnish and paint from metal and wood surfaces. Brush grinders are used to finish surfaces for further finishing work, such as painting. 1400 W high power motor, endowed with the function of maintaining speed under load. There is also a speed control function, which of course is good in working with different surfaces. The handle is ergonomic, comfortable in the hand. Independent replacement of carbon brushes is provided. The number of revolutions is 1000 - 3000 revolutions per minute. Brush length - 100 mm, diameter 120 mm. Powered by 220 V. Wire length 2 m.

    Pros and cons

    Power, stays cool

    Uncomfortable handle

    How to choose a grinder

    You have read the ranking of the best grinders of 2022. We hope it was helpful. Repair work specialist with 30 years of experience Konstantin Livanov will give practical advice on choosing a grinder.

    Classification

    Select a grinding tool based on its class, power, speed and tool size. It is these criteria that determine the functions that the grinder is capable of performing. nine0003

    Power

    One of the most important parameters. Directly related to the capabilities of the engine. More power equals better performance. For home use, devices with a power of up to 1000 W are suitable, the rest is already for professionals.

    Speed ​​

    The nature of the work being done and the material of the surface to be machined affect the speed. Grinding hard materials is carried out at high speeds, and delicate surfaces at low speeds. The most comfortable option is the presence of a speed controller. nine0003

    Tool size

    The higher the power, the larger the tool size. The larger tool is suitable for large surfaces. And for a small amount of processing, you need to select equipment of smaller sizes.

    Best grinders, top 9 rating of good grinders