--- product_id: 514296402 title: "DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only)" brand: "dewalt" price: "R$3429" currency: BRL in_stock: true reviews_count: 5 category: "Dewalt" url: https://www.desertcart.com.br/products/514296402-dcg412b-20v-max-lithium-ion-4-1-2-grinder-tool store_origin: BR region: Brazil --- # 8,000 RPM high-power motor Tool-free adjustable guard & 2-position handle Quick-Change Wheel Release, no wrench needed DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only) **Brand:** dewalt **Price:** R$3429 **Availability:** ✅ In Stock ## Summary > ⚡ Cut Loose with Dewalt’s Cordless Powerhouse! ## Quick Answers - **What is this?** DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only) by dewalt - **How much does it cost?** R$3429 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/514296402-dcg412b-20v-max-lithium-ion-4-1-2-grinder-tool) ## Best For - dewalt enthusiasts ## Why This Product - Trusted dewalt brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Custom Comfort Control:** Adjust the guard and side handle effortlessly for precision and ergonomic grip. - • **Unleash 8,000 RPM Power:** Turbocharge your cutting and grinding with industry-leading speed. - • **Wrench-Free Wheel Swaps:** Switch discs in seconds with the Quick-Change Wheel Release—no tools, no downtime. - • **Safety Meets Convenience:** 2-finger trigger with lock-off button ensures secure, easy activation every time. - • **Cordless Freedom, Maximum Runtime:** Powered by 20V MAX* Lithium Ion battery for extended, uninterrupted work sessions. ## Overview The Dewalt DCG412B 20V MAX* Lithium Ion 4-1/2” grinder delivers professional-grade 8,000 RPM motor power in a lightweight, cordless design. Featuring a Quick-Change Wheel Release and tool-free adjustable guard, it maximizes efficiency and user comfort. Ideal for managers and pros who demand speed, safety, and versatility on the job site. ## 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. Review: Muy buena, solo les recomiendo comprar una pila de 8 amp Review: Works great ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007NVSS1W | | ASIN | B007NVSS1W | | Accessory Connection Type | 5/8" Arbor | | Batteries | 1 Product Specific batteries required. | | Batteries | 1 Product Specific batteries required. | | Batteries Included? | No | | Batteries Required? | Yes | | Battery Cell Type | Lithium Ion | | Best Sellers Rank | #73,546 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #184 in Power Grinders | | Color | yellow | | Country of origin | Mexico | | Customer Reviews | 4.7 4.7 out of 5 stars (6,594) | | Customer reviews | 4.7 4.7 out of 5 stars (6,594) | | Date First Available | 1 January 2024 | | Date First Available | 1 January 2024 | | Included components | bare-tool | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 2.13 Kilograms | | Item model number | DCG412B | | Item model number | DCG412B | | Manufacturer | Dewalt | | Manufacturer | Dewalt | | Material | Metal, Plastic | | Number Of Pieces | 1 | | Number of Handles | 2 | | Part number | GID-298441 | | Pattern | Grinder | | Power source type | Battery Powered | | Product Dimensions | 18.59 x 42.55 x 12.07 cm; 2.13 kg | | Product Dimensions | 18.59 x 42.55 x 12.07 cm; 2.13 kg | | Size | 5/8 in. | | Special Features | heavy-duty | | Style | Cut Off Tool Only | | Voltage | 20 Volts | | Wattage | 2000 watts | ## Product Details - **Brand:** DEWALT - **Material:** Metal, Plastic - **Power source:** Battery Powered - **Product dimensions:** 42.5L x 18.6W x 12.1H centimeters - **Style:** Cut Off Tool Only ## Images ![DCG412B 20V MAX* Lithium Ion 4-1/2” grinder (Tool Only) - Image 1](https://m.media-amazon.com/images/I/71EQkE0uQFL.jpg) ## Questions & Answers **Q: can I use 20V MAX Lithium Ion 5 AH battery for this tool? 5 AH is the correct one or no.** A: Any DeWalt or compatible 20v Li-Ion battery will work. They range from less than 2 Ah all the way up to 6 Ah. They'll all work the same, but the smaller the battery Ah capacity the less time they'll power the tool before recharging.I urge people to consider buying only the bare tool and buying generic DeWalt-compatible batteries. The difference today between the bare tool and the bundle that includes two 5.0 Ah batteries is $150. For $75 or less you can buy two generic DeWalt-compatible (IMPORTANT! all brands are keyed differently and are NOT interchangeable) 5.0 Ah batteries that work just fine. I have purchased 14 DeWalt or compatible 20v Li-Ion batteries thus far. All are working fine, and only two are DeWalt brand. The rest are Enegitech and some other no-name brands. I received one generic that had a problem, and the problem was trivial: the three "fuel gauge" lights would intermittently stay on permanently after the test button was pushed. The vendor immediately offered to refund half my money (I purchased them as a pair), or replace the battery. We decided to take the money and see how much of a problem it was for the lights to stay on. Wouldn't you know it. The problem soon went away! Sticky switch, I guess. But that's the only issue I've had, and we've used these A LOT. For $150, you can either buy these two DeWalt brand batteries or *4* generics. Trust me, if my experience is any indication, you'll be way happier to either spend half as much money for the same thing, or the same amount for twice as many batteries. Note: a 5.0 Ah battery lasts a LONG time. I don't have a grinder, so I don't know how long it'll run, but I have five brushless impact drivers, a hammer drill, a circular saw, a "Sawsall", and a portable shop vac, all DeWalt brand 20v Li-Ion tools. They all run GREAT on the generics. DeWalt doesn't manufacture batteries. They no doubt buy their batteries from the same Chinese factories that produce the generics. The only thing that's different is the cases and the way the slots are keyed so you can't use Black and Decker, Milwaukee, Bosch, etc. batteries interchangeably. The actual Li-Ion cells inside are all the same. **Q: Is this variable speed?** A: it varies from 0 to 6800rpm in less than a second. ;Dvariable speed would have been a feature i would appreciated a lot and would have made this tool even more useful. but still i'm using it a lot. **Q: Although the product description says it's ideal for electricians, do you think I could cut concrete if I were to use a 4 1/2 in diamond blade?** A: I've used this grinder to cut 1/2 in Hardiebacker when doing bathroom remodels. I use a cutoff/wafer wheel which isn't ideal for this use but it works. In my opinion it had adequate power but the fully charged battery lasted roughly 20 mins of almost continuous use (I cut about 4 sheets for a tub surround). So, to answer your question, I know it will cut concrete with a diamond wheel, but if I needed to use it continuously for an extended period of time I'd go with something corded which is the case with most battery powered saws/grinders. I hope this helps. **Q: How is the paddle switch on this compared to the trigger switch like all the other cordless grinders?** A: I find it to be far more ergonomic. Very smooth and responsive. You’ll love this grinder! Just be sure to get at least a 5ah battery or more for. 2ah only last like 10 min of continued use. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***. on 6 October 2021* Muy buena, solo les recomiendo comprar una pila de 8 amp ### ⭐⭐⭐⭐⭐ Review *by D***K on 29 October 2025* Works great ### ⭐⭐⭐⭐⭐ Review *by F***A on 16 February 2025* As a longtime DEWALT fan, I’m once again blown away by the quality and performance of the DEWALT DCG412B 20V MAX* Lithium Ion 4-1/2” Grinder! DEWALT has been my go-to brand for power tools for years, and this grinder continues to uphold the company’s reputation for delivering top-notch, durable, and reliable tools. Let’s talk about the performance—this grinder is a powerhouse! With its 8,000 RPM motor, it easily tackles even the toughest cutting and grinding jobs. Whether I’m grinding metal, cutting through concrete, or working on DIY projects, this grinder has the power I need to get the job done efficiently. It doesn’t stall, and it stays cool even after extended use, which is something I really appreciate in a tool. One feature I absolutely love is the Quick-Change Wheel Release. As someone who’s used grinders that require a wrench to change the wheels, I can tell you that this tool-free wheel removal is a game-changer. It makes switching out wheels incredibly easy, saving me so much time and frustration. The tool-free guard adjustment is another convenience that adds to the overall ease of use—no need to struggle with a wrench when adjusting the guard position, which makes it so much quicker to move between tasks. DEWALT also thought about comfort and control with this grinder. The 2-finger trigger switch with the lock-off button makes it easy to activate and provides a more comfortable grip. I especially appreciate the 2-position side handle, which gives me more control and comfort, particularly during longer projects. I can easily switch positions to ensure I’m always in the most ergonomic and efficient stance. I also love that this is a bare-tool model. Since I already have other DEWALT 20V tools, I can use the same batteries, which is both cost-effective and convenient. I don’t have to worry about buying extra batteries or chargers, which is a huge plus in my book. The 4.64-pound weight is just right—not too heavy to make it cumbersome but sturdy enough to give me the balance and control I need. The construction feels solid, and I have no doubt this grinder will hold up for years to come. DEWALT always makes tools that are built to last, and this grinder is no exception. Overall, I can’t recommend the DEWALT DCG412B enough. As a DEWALT loyalist, I trust their products to provide power, durability, and ease of use, and this grinder hits all the marks. Whether you’re a professional or a DIYer, this grinder is a fantastic tool to have in your collection. I’m absolutely thrilled with my purchase and will continue to trust DEWALT for all of my future tool needs! ## Frequently Bought Together - DEWALT 20V MAX 4-1/2 Inch Cordless Angle Grinder, Bare Tool Only (DCG412B) - DEWALT 20V MAX Circular Saw, 6-1/2-Inch Blade, 460 MWO Engine, 0-50 Degree Bevel Capability, Bare Tool Only (DCS391B) - DEWALT 20V MAX Reciprocating Saw, 3,000 Strokes Per Minute, Variable Speed Trigger, Bare Tool Only (DCS380B) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.br/products/514296402-dcg412b-20v-max-lithium-ion-4-1-2-grinder-tool](https://www.desertcart.com.br/products/514296402-dcg412b-20v-max-lithium-ion-4-1-2-grinder-tool) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-04-24*