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DeWalt DCG405

DeWalt DCG405

Best price now

$128.99at WalmartObserved at 9:34 AM

16% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Our take on the DeWalt DCG405

The DeWalt DCG405 is an 18V XR cordless angle grinder with a brushless motor, a 125 mm wheel and a no-load speed of 9,000 rpm. It uses the M14 spindle common to most 125 mm grinders, so wheels and discs are easy to find. The kit version ships with a 5.0Ah XR battery. At $79.99 at eBay as of November 5, 2026, it sits well below what a brushless 18V grinder kit usually costs, so check that the listing includes the battery and charger.

Best forTradespeople already on the DeWalt 18V XR battery platformCutting and light grinding away from mains powerMetalwork and fabrication jobs on siteBuyers who want a brushless grinder without a cord
Pros
  • Brushless motor for longer runtime and less maintenance
  • 9,000 rpm no-load speed is strong for an 18V grinder
  • 125 mm wheel with M14 spindle takes widely available discs
  • Runs on the large DeWalt 18V XR battery platform
  • Tool-free guard and easy disc changes
Cons
  • No variable speed, so it is not ideal for polishing or delicate work
  • A 5.0Ah battery adds weight and bulk
  • Bare-tool buyers pay for a battery they may not need
  • Not a substitute for a corded grinder on heavy continuous grinding

DeWalt DCG405 prices at every store

  • WalmartNew

    In stockSold by M & A Sales

    $128.99Free shippingObserved at 9:34 AM
    Visit store
  • eBayNew

    In stock

    $149.95Free shippingObserved at 9:34 AM
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  • Empire Rigging & SupplyNew

    In stock

    $216.20+ $42.37 shippingObserved at 9:34 AM
    Visit store
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $153.99Free shippingObserved at 9:34 AM
    Visit store

Also available at

  • eBayCheck price at eBay

DeWalt DCG405 price history

Lowest price we've seen: $128.99 on Nov 5 at Walmart. Tracked across 4 stores since Nov 5.

What reviewers say

Owners generally rate the DCG405 as a solid brushless cordless grinder that cuts well for its size. Most praise comes from people already invested in DeWalt 18V batteries. The main complaints are weight with a large battery and the lack of a speed dial.

Pros
  • Good power and runtime for an 18V grinder
  • Brushless motor runs cool and lasts
  • Comfortable grip and easy guard adjustment
  • Fits the existing XR battery lineup
Cons
  • Heavy with a 5.0Ah battery fitted
  • No variable speed control
  • Battery drains fast under continuous cutting

Specifications

Power Source
Cordless
Voltage
18V
Maximum Speed
9000 rpm
Variable Speed
No
Blade Diameter
125 mm
Arbor Size
M14 (22 mm)
Grinder Type
Angle grinder
Grinder Brand
DeWalt
Grinder Series
XR
Grinder Model Number
DCG 405 P1
Grinding Wheel Size
125 mm
Applications
Cutting
Battery Voltage
18V
Battery Capacity
5.0Ah
Battery Platform
XR
Battery Type
XR Li-Ion
Battery Included
Yes
Height
1 mm
Length
1 mm
Width
1 mm
Maximum Rotational Speed
9000 rpm
Power
800 W
Motor Type
Brushless
No Load Speed
9000 rpm

Questions and answers

Is the DeWalt DCG405 worth it at $79.99?
At $79.99 at eBay as of November 5, 2026, it is a low price for a brushless 18V XR grinder. Confirm the listing includes the 5.0Ah battery and charger before buying, since bare-tool prices are lower.
Does the DCG405 come with a battery and charger?
The DCG405P1 kit is listed with a 5.0Ah XR Li-Ion battery. Check the specific listing, because DeWalt also sells bare-tool versions without battery or charger.
What size discs does the DCG405 take?
It takes 125 mm (5 inch) discs with an M14 spindle thread. That is the most common size for 18V grinders, so cutting and grinding discs are easy to find.
Does the DCG405 have variable speed?
No. It runs at a fixed 9,000 rpm no-load speed. For polishing or work that needs slower speeds, a variable-speed grinder is a better fit.
How does the DCG405 compare with a corded grinder?
It is more portable and needs no mains power, but a corded grinder holds up better for long, heavy grinding. For cutting and light grinding on site, the cordless DCG405 is enough.
When is the DCG405 cheapest?
Cordless tool prices tend to dip around Black Friday and end-of-year sales. The current $79.99 at eBay as of November 5, 2026 is already low for a kit, so compare against other stores before waiting.
Where is the DeWalt DCG405 cheapest?
At Walmart, for $128.99, 16% under what the other stores charge, as of our latest check.
Where can I buy the DeWalt DCG405?
4 stores we checked sell it, including Walmart, eBay, Empire Rigging & Supply, Amazon.

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