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Cordless 4 1 2 inch Angle Grinder Compatible with DEWALT 20V Battery

Cordless 4 1 2 inch Angle Grinder Compatible with DEWALT 20V Battery

Regular price $151.99 USD
Regular price Sale price $151.99 USD
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Key Features

  • Cordless 4 1/2 inch Angle Grinder Compatible with DEWALT 20V Battery

Specifications

Brand WOIZAO
Manufacturer WOIZAO
Product Type DISC_GRINDER_TOOL
Included Components Cordless Angle Grinder
Item Type Keyword power-angle-grinders
Quantity
View full details

  • 5 stars: 7 (88%)
  • 4 stars: 0 (0%)
  • 3 stars: 1 (13%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
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W3ap0n-X
Great tool and tough

Works perfectly with DeWalt batteries and has held up well being used on cars and with a diamond blade to cut up landscaping stones.

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Andrew Kettler
Works good

Works great, the case it comes with is nice also. Overall cant complain, it works as it should

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Arthur
Amazing value!

Good quality and feature set. Not sure that I trust the discs enough to use, haven't used them yet. Tool itself is a win though. only potential downside is there's only 3 speeds, more expensive options can have more than that but not a huge deal to me. Screen makes it easy to see battery and mode

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Simon
Handy grinder for quick jobs if you're already in the Dewalt battery ecosystemHandy grinder for q...

I picked this up mainly because it runs on the same 20V Dewalt batteries as my other tools, so I don't have to keep a separate charger or battery type just for one tool. The first real test was cutting through a padlock that needed to come off, and it made quick work of it with a clean cut.Compared to my corded genuine Dewalt grinder, this one doesn't feel quite as solid, but that's expected. For situations where I don't need the raw power or precision of the corded tool, this cordless version covers me just fine.Pros:1. Compatible with Dewalt 20V Max batteries, so it fits right into tools I already own2. Cut through a padlock with no issues3. Soft start feature, which isn't common in tools at this price point4. Good option for quick or occasional jobs where a corded grinder is overkillCons:1. Doesn't feel as well built as a genuine corded Dewalt grinder2. No tool-less way to swap out blades/discs

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Amazon Customer
Can't go wrong at this price point

Up front this is a typical knock-off of Dewalt. With that said this is a decent knock-off.The battery seats very well and the trigger works great.Fortunately it is brushless (unverified) which will help extend the life of the grinder.The disks that come with it are a decent set and I used the cut-off wheel to cut some bolts in half.The higher end models have a tool free removable nut but that blade wrench that comes with this unit works perfectly fine. With corded units it's a no brainer to just tape the wrench about a foot down on the cord so you won't loose it. This one your just going to have to keep track of.The RPM's are enough to accomplish any job.It has a weird comparison to brushed motors which is completely unverifiable however brushless is superior.PSA: A lockable trigger on a grinder is not ideal. A deadman switch is the best option because of the high speed of the disc. Please be careful.My grinder has a weird twist to it where 2 main components meet between the handle and main grinder body. Thats a bit concerningBottom line-I recommend for the budget friendly option. Fo me this is a back-up to my primary grinder to avoid changing blades back and forth on certain project.

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Amazon Customer
Solid Value For DIY'ersSolid Value For DIY'ers

This is a high-value, feature-packed budget option for DIYers and home wood/metalworkers who are already invested in the DeWalt 20V battery ecosystem. At a fraction of the cost of a name-brand DeWalt brushless grinder , it packs surprisingly modern tech like a digital display, electronic speed controls, and quick braking.However, because it is an aftermarket unit trying to deliver high performance at a low price point, it is best suited for light-to-medium duty tasks (cutting rebar, trimming pipe, removing surface rust, light welding prep) rather than heavy daily job site abuse.The biggest selling point. If you already own DeWalt 20V MAX batteries, you save significantly on battery pack costs. Excludes DCBP520 (PowerStack 5.0Ah) and likely heavy FlexVolt packs. Angle grinders are among the most power-hungry tools in existence. While a 2.0Ah battery will physically snap into place, the high current draw will drain it in under 5 minutes. The seller’s recommendation of a 4.0Ah or higher is spot on.Brushless is a massive upgrade. It runs cooler, doesn't throw carbon sparks, and extracts maximum run-time from your battery. 8,500 RPM is a very standard, capable speed for 4.5-inch cutting/grinding wheels.The seller claims 70% more power and 80% longer lifespan. Take specific percentages with a grain of salt, but the basic principle holds: brushless outlasts brushed motors every time.This is rare on entry-level grinders, and it is actually extremely useful. Pure high-speed grinding generates massive heat that can discolor thin metals or scorch paint. Dialing down to Gear 1 or 2 (~6,200–7,200 RPM) gives you much better control for delicate sanding, flap-disc work, or paint removal without burning through material.Angle grinders can be dangerous due to initial torque when switched on. A Soft Start feature ramps up to prevent the tool from jerking out of your hand when toggled—a great safety feature, especially when working on ladders or tight spaces.The advertised 1.5-second quick stop is a genuine safety highlight. Standard cheap grinders take 5 to 8 seconds to coast down after you release the trigger, which is how many workshop accidents happenOffering a 3-position handle is handy for awkward angles. Including a starter pack of 9 wheels/discs is a nice touch that allows you to start working out of the box.Note that changing discs requires the supplied wrench (spanner key) and holding down the spindle lock button. It is not a tool-free lever clamp, so don't lose that wrench!

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Erica McDonald
Perfect backup grinder for Dewalt users

[Set name: power Angle Grinder Set 01]
I bought this as a second angle grinder to keep in my truck for quick jobs, and it’s been a great little tool. It fits all my existing Dewalt 20V batteries without any adapter issues, which is exactly what I needed. The brushless motor gives smooth starts and enough torque for cutting rebar and grinding down welds. I especially like the 3-speed slider – being able to slow it down for flap disc work is a nice touch. The quick-release guard is also way better than messing with a hex key on my other grinders. If you already have Dewalt batteries, this is a no-brainer for the price.

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chris hadlock
Solid performer for home projects

[Set name: power Angle Grinder Set 01]
I’m not a pro, just someone who likes to fix things around the house. This grinder made cutting old bolts and cleaning up rust so much easier than using my corded one. The fact that it shares batteries with my Dewalt drill means I never have to worry about charging a special pack. The included accessories are decent – several cutting wheels, 3 flap discs and even a little wrench that actually works. The soft start feature is great because it doesn’t jerk your wrist when you pull the trigger. One thing to note: it drains a 2Ah battery pretty fast, so I recommend using at least a 4Ah pack for serious work. Also, no case is included, which would have been nice, but for the money I’m still very happy.