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ONEVAN
onevantool.com › home › news › news
What Size Angle Grinder Do I Need
January 22, 2025 - The ONEVAN 76 mm (3 Inch) Angle Grinder solves this problem. It is the smallest standard size. Its 3-inch disc offers precise cutting capabilities, and the disc diameter allows for work in tight spaces.
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Popular Mechanics
popularmechanics.com › home › tools › the 7 best angle grinders for cutting tile, grinding grout, and polishing metal
The Best Angle Grinders We Recommend for Cutting, Grinding, and Polishing
August 20, 2024 - ... This compact cordless Bosch angle grinder cuts quickly and cleanly through tile or pipes located in spots that are too tight for a full-sized model. At just 3 inches long and weighing only a pound and half without a battery, you can wield ...
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The Home Depot
homedepot.com › tools › power tools › grinders › angle grinders
3 in - Angle Grinders - The Home Depot
20V XR Cordless 3 in. Cut-Off Tool and 20V MAX POWERSTACK Compact Battery Starter Kit
20V XR Cordless 3 in. Cut-Off Tool and 20V MAX POWERSTACK Compact Battery Starter Kit
(4.6)
Price   $358.00
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Lowe's
lowes.com › tools › power tools › grinders › angle grinders
Bosch 3-in 12-volt Max Sliding Switch Brushless Cordless Angle Grinder (Charger Not Included) GWS12V-30N at Lowes.com
Your choice.Learn More ... The Bosch GWS12V-30 12V Max 3 In. Angle Grinder is ideal for the pro who needs a compact powerhouse to get to those quick, difficult cuts in tight spaces other tools can't.
Published   November 26, 2025
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Jusfit Power Tools
jusfitools.com › products › 3-inch-mini-angle-grinder
Buy 3 Inch Mini Angle Grinder | Jusfitools
JUSFIT'S 3 inch Mini Angle Grinder
Discover the versatility of the JUSFIT 3-inch Mini Angle Grinder – a powerhouse designed to tackle household tasks with ease. This cordless grinder is equipped with a robust motor capable of cutting through concrete, stucco, and rebar, making it the ideal tool for various DIY projects. With enhanced safety features like restart protection and soft start controls, the JUSFIT 12V Angle Grinder is user-friendly, catering to DIY enthusiasts of all skill levels. An Angle Grinder Tailored for Your Tasks Explore the power within the compact design of the JUSFIT 3-inch Mini Angle Grinder. With dimen
Price   £62.69
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Amazon
amazon.com › Bosch-GWS12V-30N-Brushless-Angle-Grinder › dp › B09LX43LC4
BOSCH GWS12V-30N 12V Max Brushless 3 In. Angle Grinder (Bare Tool) - Amazon.com
The Bosch GWS12V-30 12V Max 3 In. Angle Grinder is ideal for the pro who needs a compact powerhouse to get to those quick, difficult cuts in tight spaces other tools can't. With its brushless motor design and optimized gear structure, this efficient ...
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Amazon
amazon.com › Best-Sellers-Power-Angle-Grinders › zgbs › hi › 552812
Amazon Best Sellers: Best Power Angle Grinders
Diment Power Grinding Dust Shroud for Angle grinder 4 1/2-Inch / 5-Inch, Diamond Grinding Cup Wheel 5-Inch ... SHALL 3 Inch High-Speed Cut Off Tool, 3.5 Amp Metal Cutter Tool with 3Pcs Multifunctional Cut Off Wheels, 24000RPM Electricl Metal Cutting Tools for Steel, Inox
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Alibaba
alibaba.com › showroom › 3-inch-angle-grinder.html
3 Inch Angle Grinder - Cordless Brushless 12V Mini Tool
A corded 3-inch angle grinder is ideal for large jobs. It provides uninterrupted power, allowing it to tackle heavy grinding, cutting, and finishing tasks over extended periods. Large industrial jobs require the constant power and durability of a corded grinder.
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Amazon
us.amazon.com › Best-Sellers-Tools-Home-Improvement-Power-Angle-Grinders › zgbs › hi › 552812
Amazon Best Sellers: Best Power Angle Grinders
GALAX PRO Electric Angle Grinder,Equipped with 4.0 Amps Motor with 750W Max Output Power,4-1/2 inch Corded Angle Grinder 12000RPM with Cutting & Grinding Wheels,Flap Disc and Auxiliary Handle ... DEWALT 20V MAX Cordless Angle Grinder Kit, 3-in.
Find elsewhere
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Walmart
walmart.com › auto & tires › auto body › auto repair tools › automotive repair instruments › power tools › grinders › angle grinders
Angle Grinders in Grinders - Walmart.com
$49.99Fovendi 3-inch Angle Grinder Tool, Cordless Angle Grinder with 2 x 1500mAh Battery and Charger for Metal Cutting, Grinding and Polishing
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Amazon
amazon.com › Inch-Tool-Wheel-Speed-20000RPM › dp › B07PJ6XGJ9
3 Inch Air Cut Off Tool with Cut Off Wheel,Free Speed 20000RPM - Amazon.com
Air Angle Grinder is compact, lightweight, easy to handle, and provides great power and durability for all of your applications! For ultimate performance, this 3 Inch Angle Grinder is the perfect choice.
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3M
3m.com › united states › all 3m products › tools & equipment › power tools › power grinders
3M Power Grinders | 3M United States
Power Grinders · Filter · Filter · View results · 3M™ Pneumatic Angle Grinder, 88566, Used for 4-1/2 in - 5 in discs, 1.5 HP, 12K RPM, 1 ea/Case · 3M Stock · 7100250449 · UPC · 00638060885666 · Alternative ID · 88566 · 3M™ Cut-Off Wheel Tool 33579, 76 mm (3 in), 1/Case ·
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MIG Welding
mig-welding.co.uk › forums › tools, compressors and metal coatings › tools, materials and techniques
Who dose a good 3 inch/75mm grinder | MIG Welding Forum
July 14, 2022 - Any one know of a 75mm or 3 inch grinder looking as doing a bit of work in tight spaces and the 4 and 4.5 inch grinders just a little cumbersome. Corded or cordless. don’t have a air compressor and I ain’t a dremmel fan plus don’t think it be gutsy enough for this application. ... Die grinder territory , hard to go past Dynabrade , just a wee tad spendy though. But when the hurt is over they are mighty versatile , you wonder how you ever got by without a few of them , either straight , angled or 90 degree , and so many discs and burrs to choose from too.
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Reddit
reddit.com › r/tools › angle grinder buying advice? variable speed, diameter, etc
r/Tools on Reddit: Angle grinder buying advice? Variable speed, diameter, etc
June 5, 2021 -

It's been 20+ years since I last used a small angle grinder for small welding jobs. I'm looking to buy one for occasional DIY, but see a wide range of power specs, and a pretty wide range of prices too. My main use is small welding jobs (furniture, repairing a fence, etc) and removing rust before painting, e.g. a metal fence. Any advice would be appreciated!

Size: 115 (4.5") vs 125 mm (5") seems like a small difference, but even a single manufacturer (Bosch) offers a bunch of versions in each size. Does it matter? Are disks more readily available in one of those sizes?

Power/amps: how much do I need?

Variable speed: how useful is this feature? Saw some claims that running at low speed can lead to burnout due to insufficient cooling? Intuitively, I like the idea of being able to drop the speed down for say removing rust, but maybe it's not necessary?

Anything else to look for?

Top answer
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Everyone has their own opinions on grinders, so take mine with a grain of salt. 4.5/5" grinders are by far the most common. However I find myself using a 6" grinder more often. However, I don't think I would be happy with ONLY a 6" grinder, because many attachments (wire wheels, cup wheels, diamond grinding wheels, etc) will only fit a 4.5" grinder. So if I were to only get one, I would probably go with a 5"/125mm grinder. A 5" cutting or grinding wheel really does make a noticeable difference vs. a 4.5 wheel. There are very few times where you would really use a variable speed grinder. Such as polishing stone/concrete. Even then, you could probably get away with a full speed grinder and be easy, or ghetto mount the polisher to a drill, etc. Overall, I don't think variable speed grinders are worth their price premium. When using the grinder for the most common tasks (grinding, wire wheel, cutting) you definitely want full speed, I don't see any benefit to doing any of those tasks at less than full speed. I think you should have at least 6 amps (800W) of power. 8+ amps is preferable. I use 14A grinders exclusively and love the extra power. I'm a big fan of paddle handle grinders, but again, to each their own. Locking paddle handles are kind of the best of both worlds, but they're not very common due to OSHA requirements.
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4.5” or 5” isn’t a big difference, as long as the wheels you need are readily available. I wouldn’t go bigger. Variable speed is a great feature if it doesn’t increase the price a lot. Wire wheels flick off wires a lot at full speed, so if you can lower the speed and avoid that you’ll be loving life more. The big sticking point will be a personal one- switch type and position. Some people like slide slide switches, some people like paddle. Some manufacturers put their switches in weird locations that force you to turn it on and adjust your grip every time. Go to the store and play with a bunch to see what you like.
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Walmart
walmart.com › ip › 12V-Cordless-Brush-Angle-Grinder-Kit-Ginding-Disc-3-Inch-76mm-Lightweight-Angle-Grinder-Tool-with-2PCS-1300mAh-Battery-and-6PCS-Cutting-Disc › 14950561773
12V Cordless Brush Angle Grinder Kit, Ginding Disc 3 inch, Lightweight Angle Grinder Tool with 2PCS 1300mAh Battery and 6PCS Cutting Disc - Walmart.com
12V Cordless Brush Angle Grinder Kit, Ginding Disc 3 inch, Lightweight Angle Grinder Tool with 2PCS 1300mAh Battery and 6PCS Cutting Disc
This handheld portable angle grinder has a lot of powerful functions for you to experience. You can use it for ceramic tile gaps cleaning, wood plate cutting, plastics cutting and so on. If you are looking for a new angle grinding machine, come and try this product, it will not let you down. · · Features: · Compact12V angle grinder is designed to be lightweight at only 1100g. and can be operated by either man or woman with one hand. Widely used for grinding, cutting, sanding and polishing processing of various materials, including metal, tile, concrete, pipes, conduits and other solid mat
(4.4)
Price   $32.99
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Pro Tool Reviews
protoolreviews.com › home › best angle grinders for metal, concrete, wood, and more
Best Angle Grinders For Metal, Concrete, Wood, and More - Pro Tool Reviews
1 day ago - If you need help picking the best angle grinder, first consider what work you'll be doing to help narrow down which features you need.
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Harbor Freight
harborfreight.com › power-tools › grinders-sanders › angle-grinders.html
Angle Grinders - Harbor Freight Tools
Harbor Freight buys their top quality tools from the same factories that supply our competitors. We cut out the middleman and pass the savings to you!