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20V MAX Cordless 4.5 in. - 5 in. Grinder and (1) 20V MAX XR Premium Lithium-Ion 4.0Ah Battery

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  • Includes 4 1/2 in. Grinder
  • Includes 20-Volt Max 4.0Ah Battery w/ Fuel Gauge
  • Compatible w/ All (200+) DEWALT 20-Volt MAX Batteries & Chargers
  • View More Details
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Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy
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Product Details

DEWALT power tools are made to live on the jobsite. That is where they are tested, and if there is a problem, it’s where we solve it.

DEWALT Guaranteed Tough

DEWALT power tools are made to live on the jobsite. That is where they are tested, and if there is a problem, it’s where we solve it.

Select from a variety of 20 VOLT batteries to fit your need, or get up to eight times runtime when using DEWALT FLEXVOLT batteries with 20 VOLT tools.

Multiple Battery Options

Select from a variety of 20 VOLT batteries to fit your need, or get up to eight times runtime when using DEWALT FLEXVOLT batteries with 20 VOLT tools.

Take charge with 200+ products in the 20 VOLT MAX line, each designed to fit the job. All tools come with upgraded features and superior ergonomics.

DEWALT 20 VOLT MAX System

Take charge with 200+ products in the 20 VOLT MAX line, each designed to fit the job. All tools come with upgraded features and superior ergonomics.

Includes a Bonus DCB204 Premium 4.0Ah Battery.

One Battery Included

Includes a Bonus DCB204 Premium 4.0Ah Battery.

8000 RPM motor provides high power for cutting and grinding applications.

Up to 8000 Rotations Per Minute (RPM)

8000 RPM motor provides high power for cutting and grinding applications.

Our largest cordless platform continues to expand making 20 VOLT MAX a system you can build on.

DEWALT 20 VOLT MAX

Our largest cordless platform continues to expand making 20 VOLT MAX a system you can build on.

3-Year Limited Warranty, 1-Year Free Service and 90-Day Money Back Guarantee

Tool Warranty

3-Year Limited Warranty, 1-Year Free Service and 90-Day Money Back Guarantee.

20V MAX and FLEXVOLT Batteries are Compatible with all DEWALT 20V MAX Tools

Compatibility

20V MAX and FLEXVOLT Batteries are Compatible with all DEWALT 20V MAX Tools.

20 VOLT 1.3Ah, 1.5Ah, 2.0Ah and 3.0Ah feature a compact and Lightweight design.

Lightweight Design

20 VOLT 1.3Ah, 1.5Ah, 2.0Ah and 3.0Ah feature a compact and Lightweight design.

No memory and virtually no self-discharge for maximum productivity and less downtime.

No Battery Memory

No memory and virtually no self-discharge for maximum productivity and less downtime.

90-Day Money back guarantee and up to 3-year free service agreement. DCB201 has a 2-year limited warranty.

Battery Warranty

90-Day Money back guarantee and up to 3-year free service agreement. DCB201 has a 2-year limited warranty.

20 VOLT 4.0Ah and 5.0Ah batteries and 60 VOLT FLEXVOLT batteries are designed for longer runtimes and more power.

Runtime and Power

20 VOLT 4.0Ah and 5.0Ah batteries and 60 VOLT FLEXVOLT batteries are designed for longer runtimes and more power.

Get up to 8x the runtime when using DEWALT FLEXVOLT batteries with 20 VOLT MAX tools.

FLEXVOLT Compatible

Get up to 8x the runtime when using DEWALT FLEXVOLT batteries with 20 VOLT MAX tools.

The DEWALT 20-Volt MAX Lithium-Ion 4-1/2 in. Cut Off Tool (model DCG412B, tool-only) is ideal for a wide range of construction, maintenance, repair and automotive applications. This versatile tool is designed for electricians, mechanical contractors, ironworkers and automotive mechanics tasked with cutting, grinding and finishing metallic materials. It delivers 8000 RPM for fast cutting and grinding applications and features a quick-change wheel release that enables wrench-free wheel changes. Additionally, the device offers a tool-free adjustable guard that allows safe and quick repositioning of the guard without the need for a tool or key. A 2-position side handle offers increased control and comfort.
  • 8000 RPM motor provides significant power for cutting and grinding applications
  • Quick-change wheel release allows for tool-free wheel changes without the need for a wrench
  • Tool-free guard allows for quick, easy guard adjustments/positioning
  • Includes 5 in. x 1/4 in. T27 metal grinding wheel
  • Ideal for electricians, mechanical contractors, ironworkers and automotive mechanics
  • Batteries and chargers sold separately, works with these batteries (DCB200, DCB201) and chargers (DCB101, DCB119, DCB103)
  • Backed by a 3-year limited warranty, 1-year free service contract and 90-day money-back guarantee
  • DCB204 no memory and virtually no self-discharge for maximum productivity and less downtime
  • DCB204 compatible with 20-Volt MAX lithium-ion chargers (sold separately)
  • DCB204 also available in 2-pack (model DCB204-2)
  • DCB204 3-year free service agreement
  • Shop All Dewalt Tools
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents

Additional Resources

From the Manufacturer

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Specifications

Dimensions: H 4.75 in, W 5.25 in, D 15.35 in

Dimensions

Product Depth (in.)15.35 inProduct Height (in.)4.75 in
Product Width (in.)5.25 inWheel Diameter (in.)4.5 in

Details

Amperage (A)0.0Arbor Size0.625
Batteries IncludedNoBattery Power TypeLithium Ion
Battery SizeLithium IonCharger IncludedCharger Not Included
Color FamilyYellowConditionNew
Cordless Tool TypeAngle GrinderCordless/CordedCordless
Electronic Speed ControlNoGrinder Switch TypeTrigger
IncludedSecond HandleMaximum Speed (RPM)8000 RPM
Motor TypeBrushedNumber of Total Batteries Included1
Power Tool FeaturesNo Additional FeaturesProduct Weight (lb.)5.52 lb
Returnable90-DayTools Product TypePower Tool
Variable SpeedNoVoltage (V)20

Warranty / Certifications

Certifications and ListingsCSA ListedManufacturer Warranty3 year limited warranty/90 day money back guarantee/1 year free service contract
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Questions & Answers

67Questions
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Q:Will this grinder work with DCB 230 3AH battery? The DCG412B
by|Dec 9, 2023
0 Answer
Answer This Question
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Q:I just bought a XR 4 amp hour battery and it's been charging for more than 10 hours and it's still showing a solid red light. How long does it take to get fully charged?
by|Dec 5, 2023
1 Answer
Answer This Question

A:  Hello Alan Thank you for your feedback regarding DEWALT battery. I am sorry to hear you are unhappy with this product and would be more than happy to assist you with a resolution. If you would like further assistance, please email support at wecare@sbdinc.com and reference ticket 8670103 ,so all information is easily available for the agent to assist you further. Thanks, Sherri DEWALT

by|Dec 5, 2023
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    Q:Will this grinder work with 1.5AH battery
    by|Nov 30, 2023
    1 Answer
    Answer This Question

    A:  Yes, the DCG412B will work with the DEWALT 20V battery line-up.

    by|Nov 30, 2023
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      Q:Does it include the type 1 guard for cutting wheel?
      by|Oct 28, 2023
      1 Answer
      Answer This Question

      A:  No,. A Type 1/41 guard is available at extra cost from your local dealer or authorized service center

      by|Oct 28, 2023
        Showing 1-4 of 67
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        Customer Reviews

        4.5 out of 5
        (980)
        • 4.5
          out of 980 reviews
        • 86% recommend this product
        Filter by:
        Showing 1-10 of 980 reviews
        Great Tool for the Home or Business!
        I purchased this Dewalt Grinder to assist with sharpening my riding mower blades. I have a lot of Dewalt cordless equipment so I wanted to make good use of the batteries I have already. First, I will say this grinder has some serious torque. Just by activating the trigger you feel the tool twist in your hand from the torque. Pros: Great Power Ease of accessing tight spots Ease of changing disc Grinder guard is easily adjusted without tools 3 year limited warranty Comes with battery and charger(starter kit) 5 inch grinding wheel included 8000 rpm motor Compatible with Dewalt batteries Cons: Weight of 6 pounds I used this grinder to sharpen my mower blades and as you can see it did a great job. It was easy to control and the brake for the disc slowed the grinder pad soon after I released the trigger. This will prevent unwanted damage and injury. This is a tool you didn't know you needed, until you don't have it. I have attached photos of the mower blades. This tool is a beast and has multiple uses! If you find this review helpful, I would appreciate giving it a like and helpful check!
        by
        • Verified Purchase
        • Recommended
        17 found this review helpful
        When my son was young I had a basketball hop installed in our yard. The installer not only cemen...
        When my son was young I had a basketball hop installed in our yard. The installer not only cemented the post into the ground he poured cement into the post. I wanted to remove it but couldn't decide which power tool to purchase for the project. I originally decided on a reciprocating saw but decided it wouldn't cut the post as close to the ground as this DeWALT Grinder. This tool did the job perfectly. However, the grinding disc supplied with the tool wasn't quite suitable to the job so I purchased a Rigid Metal Cutting Diamond Blade. This combination was perfect for the project and did exactly what I wanted. It not only cut through the steel but the cement as well. I would highly recommend this tool as well as DeWALT tools as well!
        by
        • Verified Purchase
        • Recommended
        21 found this review helpful
        Has decent power not a bad tool for the price
        Has decent power not a bad tool for the price
        by
        • Verified Purchase
        • Recommended
        1 found this review helpful
        Excellent product
        Excellent product
        by
        • Verified Purchase
        • Recommended
        Average tool not what I expected from dewalt tools it did the job but jet I feel the tool lacked ...
        Average tool not what I expected from dewalt tools it did the job but jet I feel the tool lacked the power you expect and expencive first time a dewalt tool did not meet my expectstions.
        by
        • Verified Purchase
        • Recommended
        3 found this review helpful
        works as intended- slapped the cup grinder on this baby and the mortar magically disappeared...ev...
        works as intended- slapped the cup grinder on this baby and the mortar magically disappeared...even taking with it the dust after putting on the dust shroud. Simple, easy to use and put together, easy to hold and if you already have a couple 20v batteries this is a great value addition to use with those batteries.
        by
          • Recommended
          4 found this review helpful
          It’s a battery. Quite honestly I don’t like that the time it lasts per charge isn’t much better ...
          It’s a battery. Quite honestly I don’t like that the time it lasts per charge isn’t much better than the one the drill set came with. I love dewalt products but I feel they could last longer per charge
          by
          Response from DewaltProductExpertAug 8, 2018
          Hi, we're sorry to hear of the trouble you are having with the 20-Volt MAX XR Lithium-Ion Premium Battery Pack 4.0Ah. We would appreciate the chance to speak with you and assist you with warranty. Please email wecare@sbdinc.com and reference case #08293705. Many Thanks, Mitzy DEWALT Customer Care
          • Verified Purchase
          • Recommended
          8 found this review helpful
          For the price it is worth it. Does what it’s supposed to do
          by
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                Showing 1-10 of 980 reviews