I'm replacing my at home tools(ryobi) with Herc when they fail. I've been very impressed with the 20V Drill, Impact driver and Circular saw. The tire shop down the street has all hurc impact wrenches, and have said they haven't have any problems. And they are all daily use. 5 year warranty. Unless I find out something horrible about them, I'm going to keep switching. I'd give a lot for a nail gun. Answer from Adventurous_War_5377 on reddit.com
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Harbor Freight
harborfreight.com › home › power tools › grinders › angle grinders › 4-1/2 in. angle grinders
20V Brushless Cordless, 4-1/2 in. Slide Switch Angle Grinder - Tool Only
20V Brushless Cordless, 4-1/2 in. Slide Switch Angle Grinder - Tool Only
The BAUER™ 20V Brushless Cordless, 4-1/2 in. Angle Grinder delivers up to 10,500 RPM to tackle most grinding applications. Spindle lock for fast, easy wheel changes. This angle grinder is the ideal choice for metal grinding, shaping, and sanding. Powered by the BAUER™ lithium-ion battery system.
(4.6)
Price   $39.99
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Harbor Freight
harborfreight.com › home › power tools › grinders › angle grinders › 4-1/2 in. angle grinders
20V Cordless, 4-1/2 in. Slide-Switch Angle Grinder - Tool Only
20V Cordless, 4-1/2 in. Slide-Switch Angle Grinder - Tool Only
The BAUER™ 20V Cordless, 4-1/2 in. Angle Grinder delivers up to 7000 RPM to tackle most grinding applications. Powered by the BAUER™ lithium-ion battery system.
(4.4)
Price   $34.99
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Harbor Freight
harborfreight.com › home › power tools › grinders › angle grinders › 4-1/2 in. angle grinders
20V Brushless Cordless, 4-1/2 in./5 in. Paddle-Switch Angle Grinder - Tool Only
20V Brushless Cordless, 4-1/2 in./5 in. Paddle-Switch Angle Grinder - Tool Only
Powered by a high-efficiency brushless motor, the HERCULES® 20V Brushless Cordless Angle Grinder maintains constant power in the toughest grinding and cutting applications. The compact, lightweight frame, the 2-position side handle and the lock-on switch provide ultimate comfort and control during extended periods of use. Powered by the HERCULES® Lithium Battery System, this brushless grinder goes where the job takes it.
(4.8)
Price   $79.99
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Harbor Freight
harborfreight.com › power-tools › grinders › angle-grinders › 4-1-2-in-corded.html
Harbor Freight | Whatever You Do, Do It For Less
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!
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Harbor Freight
harborfreight.com › home › power tools › grinders › angle grinders › 4-1/2 in. angle grinders
20V Brushless Cordless, 4-1/2 in./5 in. Slide-Switch Angle Grinder - Tool Only
20V Brushless Cordless, 4-1/2 in./5 in. Slide-Switch Angle Grinder - Tool Only
Powered by a high-efficiency brushless motor, the HERCULES® 20V Brushless Cordless Angle Grinder delivers up to 45% more runtime, along with 20% more power.* This grinder maintains constant power in the toughest grinding and cutting applications. The compact, lightweight frame, 2-position side handle, and lock-on switch provide ultimate comfort and control during extended periods of use. Powered by the HERCULES® Lithium Battery System, this brushless grinder goes where the job is.
(4.7)
Price   $79.99
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Reddit
reddit.com › r/harborfreight › cordless hercules angle grinder - worth it or no?
r/harborfreight on Reddit: Cordless Hercules Angle Grinder - Worth it or No?
March 23, 2024 -

Interested in the Hercules Cordless Hercules Angle Grinder that has the on/off switch and NOT the one with the pressure grip squeeze handle. Had been looking at major brand names for a larger upcoming project when family member suggested I consider Harbor Freight Tools. Wanting to know if anyone has had good or bad experiences, any battery issues or charging issues?
Angle Grinder will be used with wire brushes and pads to remove rust from large trailer that was parked out in the elements so I am able to repaint the trailer after rust has been removed.

Potentially interested in continuing pieces from Hercules line as well such as eventually adding a circular saw, drill, and sander depending on if the line is worth it.

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Harbor Freight
harborfreight.com › home › power tools › grinders
Angle Grinders - Harbor Freight Tools
Harbor Freight has a great selection of heavy duty, cordless and corded angle grinders to fit your budget and the demands of your project. Grind, cut, and clean with angle grinders from Bauer, Hercules, and Chicago Electric.
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Reddit
reddit.com › r/tools › who makes the best performance / value 4.5” cordless angle grinder kit right now at $200 or less?
r/Tools on Reddit: Who makes the best performance / value 4.5” cordless angle grinder kit right now at $200 or less?
November 11, 2024 -

I’m right now only using M12 Fuel tools for daily work, but I’d like to replace my corded angle grinder with a cordless one for ease of use on the job site. It doesn’t have to run for hours (I have several corded ones if I need one for heavy use) but instead just to make quick cuts, or smooth a surface, grind a transition. Most will likely be 5-10 minute jobs, or small fabrication projects.

I generally prefer thumb switch to paddle but I own both. I understand paddle might be safer with cordless in the event it gets dropped, because it can’t be shut off by pulling the plug.

I like the feel of the Bosch one, and I have an opportunity to get one with 2x 5.0 batteries and a charger for less than $200, but the X-lock proprietary discs bother me, as I have a collection of abrasives already that fit on a standard arbor.

Please share your experiences and recommendations? I’m open to other brands as well.

Find elsewhere
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SlashGear
slashgear.com › 1984869 › harbor-freight-tools-to-sharpen-drill-bits
These Harbor Freight Tools Can Sharpen Your Drill Bits - SlashGear
October 7, 2025 - The Hercules 20V Brushless Cordless Paddle-Switch Angle Grinder from Harbor Freight costs $79.99 in Tool Only form and is not available for purchase online. It accommodates 4.5-inch and 5-inch grinding wheels, operates at speeds up to 8,500 ...
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Harbor Freight
harborfreight.com › home › power tools › grinders › angle grinders › 4-1/2 in. angle grinders
8 Amp, 4-1/2 in. Trigger-Grip Angle Grinder
8 Amp, 4-1/2 in. Trigger-Grip Angle Grinder
The BAUER® 4-1/2 in. 8 Amp Angle Grinder features a trigger-grip design for comfort and control. The high-performance 8 amp motor delivers up to 11,000 RPM for fast material removal. The adjustable 2-position side handle and ergonomic slim body design with trigger switch provide maximum comfort during extended periods of grinding and cutting. A tool-free guard and spindle lock enable fast on-the-job wheel changes, minimizing downtime. This grinder is optimized for grinding, cutting, and shaping.
(4.8)
Price   $34.99
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BangShift
bangshift.com › home › corded v cordless 4.5″ angle grinders! which brings the beans? milwaukee v hf
BangShift.com Corded v Cordless 4.5" Angle Grinders! Which Brings the Beans? Milwaukee v HF - BangShift.com
April 22, 2023 - Today we build the 4.5″ angle grinder dyno and figure out how powerful popular Harbor Freight Hercules & Bauer cordless options are compared to corded Milwaukee 7amp & Bauer 8amp are to start our ranking of cordless angle grinders!
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Harbor Freight
harborfreight.com › 5-amp-4-12-in-slide-switch-angle-grinder-58092.html
5 Amp, 4-1/2 in. Slide Switch Angle Grinder
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!
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Reddit
reddit.com › r/harborfreight › when did they change the angle grinders from 4" to 4.5"?
r/harborfreight on Reddit: When did they change the angle grinders from 4" to 4.5"?
December 6, 2024 -

I now have two angle grinders from previous HF purchases that can't accommodate the discs sold at HF unless I take off the finger/fire saver guard. Maybe I can take my two functional 4" in and trade it for the 4.5" LOL. I know a new 4.5" is cheap but it's such a waste.....

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Reddit
reddit.com › r/harborfreight › what is the best cordless grinder that harbor freight offers. any deals with batteries chargers ect? anyone have a coupon i can have? thank you
r/harborfreight on Reddit: What is the best cordless grinder that harbor freight offers. Any deals with batteries chargers ect? Anyone have a coupon I can have? Thank you
October 31, 2022 - A sub-reddit dedicated to Harbor Freight and reviewing their tools. ... The Hercules and bauer brushless grinders are basically identical, Herc might be slightly more powerful but it might be the bigger batteries. I use both in professional automotive and fab work and haven’t crapped either out yet in a year. I still use the corded dewalt to really grind fat welds because they spin faster and are slightly more powerful, but for most tasks these cordless grinders have been surprisingly stout compared to the crappy Ryobi I got.
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The Virtual Weber Bulletin Board
tvwbb.com › forums › barbecuing & grilling discussion › buy, sell, trade grills & gear
Harbor Freight brings back the $9.99 grinder | The Virtual Weber Bulletin Board
January 7, 2022 - This is the low, low price on Harbor Freight's entry-level grinder. I thought we wouldn't see this price again: Amazing deals on this 4.3Amp 4-1/2In Angle Grinder at Harbor Freight.
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SlashGear
slashgear.com › 1785953 › harbor-freight-products-no-brainer-price-good-value-tools
12 Harbor Freight Finds That Are No-Brainers At Their Price - SlashGear
February 18, 2025 - The Warrior 4.3 Amp, 4-1/2 Inch Angle Grinder with Slide Switch retails for $14.99, although it's sold without a grinding wheel. Various types of grinding wheels can be picked up from Harbor Freight for a few dollars apiece, meaning occasional ...
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Harbor Freight
harborfreight.com › home › power tools
Grinders - Harbor Freight Tools
Angle grinders are perfect for cutting, grinding, and polishing, while bench grinders are great for sharpening tools and shaping metal. Harbor Freight Tools grinders come in a variety of sizes and power options, including corded and cordless models, to meet the needs of any job.
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Harbor Freight
harborfreight.com › search
Search Results For "4-1/2 Angle Grinder"
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!
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BobIsTheOilGuy
bobistheoilguy.com › home › forums › lubrication and general automotive › tool time
Best 4-1/2" Angle Grinder <$100?
May 5, 2021 - https://www.harborfreight.com/corde...-grinder-69645.html?_br_psugg_q=angle+grinder works like a charm. Click to expand... This one works as well. I picked one up for $9.99 with a coupon a few years ago. I also have a DeWalt 20v cordless one as well, but I hardly use it want it to last I guess.
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Harbor Freight
harborfreight.com › corded-4-in-5-amp-angle-grinder-60373.html
Harbor Freight Tools – Quality Tools at Discount Prices Since 1977
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!