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DEWALT

DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder (Tool Only)

  • Based on 6,720 reviews
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Availability: Only 4 left in stock, order soon!
Fulfilled by Mel Sale
Arrives Wednesday, Jun 24
Order within 2 hours and 39 minutes
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Style: 20V MAX Cut-Off Tool


Features

  • 8,000 rpm motor provides high power for cutting and grinding applications for the angle grinder
  • DEWALT grinder comes with Quick-Change Wheel Release allowing tool free wheel removal without need for a wrench
  • Tool-free guard of the metal grinder allows for quick and easy guard adjustments/positioning
  • 2-finger trigger switch with lock-off button for convenient activation and easier gripping
  • 2-position side handle offers greater control, comfort and versatility

Description

The DCG412B 20V MAX Lithium Ion 4-1/2-inch / 5-inch Cordless Angle Grinder increases productivity with features like Quick-Change wheel release, convenient trigger switch with lock-off button, and extended run-time battery of the DEWALT cordless grinder.

Brand: DEWALT


Product Dimensions: 16.75"L x 7.32"W x 4.75"H


Style: 20V MAX Cut-Off Tool


Power Source: Battery Powered


Color: Yellow


Power Source: Battery Powered


Voltage: 20 Volts


Wattage: 2000 watts


Maximum Rotational Speed: 8000 RPM


Item Dimensions L x W x H: 16.75"L x 7.32"W x 4.75"H


Item Weight: 5 Pounds


Style Name: 20V MAX Cut-Off Tool


Color: Yellow


Brand Name: DEWALT


Model Number: DCG412B


Global Trade Identification Number: 00


Manufacturer: DEWALT


Manufacturer Warranty Description: 3 Year Limited Warranty


UPC: 885911260800


Manufacturer Part Number: GID-298441


Included Components: bare-tool


Item Type Name: Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Does what it is supposed to do. Dewalt Quality.
Style: 20V MAX Cut-Off Tool
Works well. I have several corded angle grinders, but this one allows me to take it to places with out electricity and I don't have to drag along a generator.
Reviewed in the United States on June 9, 2026 by Neil G.
    • Great, powerful grinder.
Style: 20V MAX Cut-Off Tool
Amazing and convenient! We have always owned an electric grinder... for many years. We always thought it would be more powerful and would never "run out" of battery. We were happily surprised by how much power this battery powered grinder had!! It was able to complete our project, while using it all day long! We were cutting through rebar and thick metal horse fencing this time. I can't say enough about how nice it is to mot have a cord, and be constrained by WHERE we could use our grinder... it is freeing. ... show more
Reviewed in the United States on February 6, 2026 by Cathy J.
    • Quality & Reliability
Style: 20V MAX Cut-Off Tool
Reliability & performance are what I was looking for. So far, it has met both of those requirements. Will update as time passes. Would purchase again.
Reviewed in the United States on April 12, 2026 by CF
    • Very good product love dewalt
Style: 20V MAX Cut-Off Tool
Really a great tool just what I was looking for
Reviewed in the United States on May 14, 2026 by pauline
    • Worth it for lighter use cases
Style: 20V MAX Cut-Off Tool
A little stupid, and not super powerful. It is clearly not a flagship unit, you can tell by how rough and unrefined the torque delivery is. But for me, I rarely use an angle grinder. I didn't need 60v, an XR, or anything over the top. It's easy to handle, and has good ergonomics. It takes material out with absolute ease, my only complaint is how unrefined it seems, very clearly not their primary concern of a tool. Plenty power for me though. ... show more
Reviewed in the United States on July 12, 2025 by Spencer Plisco
    • Wonderful grinder
Style: 20V MAX Cut-Off Tool
My fiancé wanted this grinder. He absolutely loves it.
Reviewed in the United States on May 14, 2026 by Carmel Cansler
    • CORDLESS ALL THE WAY
Style: 20V MAX Cut-Off Tool
what you will hold in your hand is a grinder that is nothing short of the power it delivers comparing it to a corded tool. It spins @7000rpm; a bit slower than corded tool but it does not make much of a difference.(actually on some applications it is preferable a bit slower) it cuts, grinds,brushes through and on materials without mercy with pressure applied and no signs of slacking down....- for about 15 to 20 min. then the battery gives up on you...( hey- its a cordless tool) i think for 90% of all the work you perform with angle grinders it will give you the freedom not to to have look for a plug, find an extension cord, get tangled up in all your mess and find out at the end that you still short one foot to reach your workpiece. (sounds familiar) it will help to keep your blood pressure down. but if your work requires an extended usage ... stretch out the cord. unless you are like me(hardheaded/stubborn) and insist on to use this tool going all the way through (same for the hammer drill, saw) a third battery pack is needed (talking about the 20V-3.0amp) since it takes longer to charge the battery than what you have on running time available.[update 1.13.15 with the 5amp battery's it's not even a issue worth mentioning it] my short wishlist of improvements is a BELT CLIP (i'm missing it on my hammer drill since it is not supplied with it and i don't want to spend 10 bucks extra :( ) and variable speed or at least three settings. this would open this tool for a far wider range of applications. 11.24.14 i've been using this thing now for over a year on regular base. like every few days. i only can add that in regards to the quality of tools dewalt tops the list. still going strong this thing. ... show more
Reviewed in the United States on July 13, 2013 by HCSN
    • Entry level cordless grinder great for DIY use
Style: 20V MAX Cut-Off Tool
This DeWalt 20V Grinder is a great value for DIY or hobbyist use. It has a comfortable grip and works great on most tasks. Its can cut through sheet metal and rebar fairly easily (with a quality cut-off wheel). Also, with the grinder disc, makes it easy to clean off burrs and other jagged edges. It is fairly compact, not as small as corded grinder, but this is offset by the portability. ... show more
Reviewed in the United States on July 9, 2025 by J. Henshall

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