DEWALT 4.5-in 20V Cordless Angle Grinder & 20V 2 Amp-Hour Battery











Items Included in this Collection


Item #405419 |
Model #DCG412B
8,000 RPM motor provides high power for cutting and grinding applications
Quick-Change™ wheel release allows tool free wheel removal without need for a wrench
Tool-free guard 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
Includes: (1) DCG412 Grinder, (1) 5-in x 1/4-in T27 Metal Grinding Wheel, (1) 2-Position Side Handle, (1) Type 27 Grinding Guard, (1) Hex Wrench
General | |||
|---|---|---|---|
Battery Voltage | 20-volt max | Battery Type | Lithium ion (Li-ion) |
Color/Finish Family | Yellow | Package Contents | (1) DCG412 Grinder, (1) 5-in x 1/4-in T27 Metal Grinding Wheel, (1) 2-Position Side Handle, (1) Type 27 Grinding Guard, (1) Hex Wrench |
Sub-Brand | N/A | Handle Type | 2-position side handle |
Type | Angle grinder | Housing Material | Plastic |
Base Material | Plastic | Gearing Type | Metal |
Package Quantity | 1 | Switch Type | Trigger |
Dimensions | |||
|---|---|---|---|
Arbor Diameter | 1/4-in | Wheel Diameter (Inches) | 4.5 |
Cord Length (Feet) | 0 | Width (Inches) | 16.75 |
Length (Inches) | 16 | Amperage (Amps) | 0 |
Weight (lbs.) | 4.07 | ||
Features | |||
|---|---|---|---|
Accessories Included | Yes | Maximum RPM (RPM) | 8000 |
Adjustable Handle | Yes | Motor Bearings | Yes |
Brushless | No | Number of Batteries Included for Tool | Not included |
Charge Time (Hours) | 0 | Overload Protection | Yes |
Charger Included | No | Replaceable Brushes | No |
Cordless | Yes | Side Handle | Yes |
Electronic Speed Control | No | Spindle Lock | Yes |
Grinding Wheel Included | Yes | Variable Speed | No |
Hybrid Capable | No | ||
Compatibility | |||
|---|---|---|---|
App Compatibility | No | Works with Android | No |
Bluetooth Compatibility | No | Works with iOS | No |
Wi-Fi Compatibility | No | ||
Warranty | |||
|---|---|---|---|
Warranty | 3-year limited | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | Safety Listing | UL safety listing | |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 27112700 | ||
Ratings may include incentivized customer reviews.
What Customers Are Saying
The cordless angle grinder is a versatile tool suitable for light-duty grinding and cutting tasks. Users praise its cordless convenience, lightweight design, and power output. However, some report issues with battery life and overheating during more demanding applications. The grinder performs well for common household projects but may struggle with intensive cutting tasks, leading to overheating and battery problems. Overall, it is a solid choice for light-duty work but may not be the best option for heavy-duty or prolonged use.
Customer review summary generated by AI, including incentivized reviews.Customer Sentiment
Great for light weight work
I got this for smaller, light weight grinding jobs. A 5aH batter is a must otherwise it won't cut. It has enough torque to cut, grind, and polish but I can still use it one handed when needed.
very disappointed
**This is not a review of the Dewalt DCG412B tool, but a failure on the part of the store.** This morning at 10am, I ordered this tool online. It was listed as in stock. I opted for curbside pickup. 6 hours later, I walked into the store inquiring about my order. I didn't think it should take 6 hours to pick one tool and two matching cutting disk. I was informed that the tool was out of stock. I will say that the people I dealt with were very courteous and I have no complaint with them. I do ho...
Solid and easy to use.
This grinder is sturdy and easy to use. The cordless design give the user great flexibility when grinding out of doors. The only thing lacking was a disk wrench. That is not exactly true as it dd come with a hex wrench that does the job well enough. The only problem is that it's hard to keep up with the hex key (Allen Wrench). It would be nice if there was some way to store the hex key with (inside?) the grinder handle. If you take the grinder to the field and forget the Allen key, you're out of...
Verified Purchaser
Light Duty Grinder
[This review was collected as part of a promotion.] I think the key to this tool is to know its limits. This is not the old school corded 1,000,000 rpm grinder we all have in our box. This is a 20v cordless tool. Where it shines is with cutoff projects, quick sanding <15min, light grinding or wire wheel work, and similar. This isn’t the product to use to take an entire coat of paint off your car. So, know the role when you purchase this. The one downside I have found is the guard always seems ...
From dewalt.com
Need to speak with a store manager please
This was supposed to be a free item that came with the batteries but I was charged for it because the store cancelled my battery order but they didnt cancel the free gift. I picked up batteries from another Lowe's location without the free item (angle grinder) because I already got it with my first order but only after I noticed the charge and when I asked Lowes to refund the amount they said they cant. Please refund the free item amount since I already purchased the batterie from Lowes and it ...
Verified Purchaser
Dear Valued Lowe's Customer, to better answer your question, please contact the Lowe's customer service department at 800-445-6937 call any d...
Good starter
This is a good cheap grinder. The handling is good and has good grip. Would highly recommend.
From dewalt.com
Eats batteries and runs hot
I work for a self-storage company and once a month, I am cutting off locks for auctions. I have always used DeWalt grinders so I was happy my new employer gave me this one. Unfortunately, this particular model is not up to the job. If I am lucky, I can get through 1-1/2 disc locks on one battery. However, the batteries get so hot, the grinder shuts down and I have to put it in time out for 10-15 minutes before I can continue, usually with the second battery. I had to borrow an associate's XR gr...
Hi Cutter
We appreciate your feedback on the cordless grinder and are sorry to hear about the issue you are having with your product. This is no...
Disappointing performance.
Never been disappointed in DeWalt tools...until now. This grinder isn't worth having. Eats batteries on average of one every 3-4 minutes. No power. I've had it less than a year. Used three times. I'm taking it back to the store and swap it for either a 4½ corded grinder or a full refund. Dewalt needs to go back to the drawing board on this one.
Hello Randy and thank you for your feedback on the DCG412B DEWALT 4.5-in 20-volt Max Trigger Switch Cordless Angle Grinder (Tool Only. Your feedback...
Dewalt 20v grinder
Wished I would have done more research on this product. I absolutely love dewalt, growing up as a child watching my father and grandfather work I knew dewalt was and still is the most professional, most reliable battery powered equipment. I own many dewalt 18 and now 20v Li power tools. Heck I even tossed the echo weed trimmer for the dewalt 20v brushless. So the problems I had with the 20v grinder is simple. It eats batteries. A 5aH battery will net you about 5 mins tops for grinding. A 1.5aH b...
Verified Purchaser
Its not super powerful but does job l need .
Work well will batterys all ready have . Had a racing noise in system . Was wondering if it means it has a defect . System works well . At this time.
Verified Purchaser
Hello Mr miles. I'm sorry to hear you are not happy with the DCG412B. We would like to get some more information to determine if there is an is...













Hello John, to better answer your question, please contact the Lowe's customer service department at 800-445-6937 call any day between 6 a.m. and...