Best Milwaukee Angle Grinder with Battery and Charger: Prices & Options

Key Takeaways

• Milwaukee® M18 FUEL angle grinders deliver cordless performance comparable to 11A to 13A corded tools for heavy-duty jobsite tasks.
• HIGH OUTPUT and FORGE batteries provide significantly more power and cooler operation than standard packs, ensuring sustained performance during intense grinding.
• The RAPIDSTOP Brake system enhances user safety by stopping the grinding wheel in two seconds or less after releasing the paddle switch.
• The lineup includes versatile options like the 3670-22 for dual-disc compatibility and the 2886-20 flathead model for reaching tight spaces.
• GenuineTools offers authentic, factory-sealed Milwaukee® M18 FUEL angle grinders and kits at prices up to 60% below the manufacturer's suggested retail price.

Are Battery-Operated Milwaukee Angle Grinders Worth It?

Milwaukee® M18 FUEL™ angle grinders provide professional-grade cordless performance, delivering the 11A to 13A power equivalent of traditional corded tools. The top-rated 2882-22 and 3670-22 kits feature RAPIDSTOP™ braking for safety and high-output batteries for sustained heavy-duty grinding. Whether you need the dual-disc versatility of the 6-inch 3670-22 or a standard 5-inch kit, these tools eliminate cord clutter without sacrificing torque.

For specialized tasks, the M18 FUEL 2886-20 flathead model offers a low-profile design specifically engineered for tight spaces and flush grinding. While the 2886-20 is typically sold as a bare tool, the 2882-22 and 3670-22 kits come complete with M18™ REDLITHIUM™ batteries and rapid chargers. These authentic Milwaukee® solutions are currently available at GenuineTools for up to 60% off MSRP, offering significant savings for contractors and DIYers.

Top Milwaukee® Angle Grinders with Battery and Charger

1. Milwaukee® M18 2882-22

The Milwaukee® M18 2882-22 angle grinder can perform 135 cuts on a single charge. 

Milwaukee® M18 FUEL™ 4-1/2" / 5" Braking Grinder Kit (model 2882-22) is the flagship cordless grinder in Milwaukee®'s M18 lineup. This kit comes with two M18 REDLITHIUM™ HIGH OUTPUT™ XC6.0 batteries and an M12/M18 Rapid Charger, making it a complete out-of-the-box solution for serious users.

Key Specifications and Pricing

• Model: Milwaukee® M18 2882-22
• Disc Size: 4-1/2" / 5"
• Motor: POWERSTATE™ Brushless
• Max Speed: 8,500 RPM
• Equivalent Corded Power: 11A
• Battery: 2x REDLITHIUM™ HIGH OUTPUT™ XC6.0
• Switch Type: Paddle (No Lock)
• Arbor Size: 5/8-11
• Weight: 5.5 lb
• Price at GenuineTools: $309.99

The 2882-22 delivers the power of a 11A corded grinder and is capable of up to 135 cuts per charge in ½" rebar using the included XC6.0 batteries. That's a significant amount of runtime for a cordless tool and makes this kit genuinely viable for full-day job site use without needing to swap batteries constantly.

Best For

This kit is best for professional tradespeople and serious DIYers who do heavy grinding, cutting, and surface prep work regularly. If you're working with thick metal, cutting rebar, or doing weld grinding on structural steel, the 2882-22's 11A equivalent power and HIGH OUTPUT XC6.0 batteries give you the runtime and torque to handle it without slowing down. The paddle switch with no-lock design also adds a layer of safety for high-volume use.

2. Milwaukee® M18 3670-22

The Milwaukee® M18 3670-22 is compatible with both 4-1/2" and 6" discs. 

The Milwaukee® M18 FUEL™ 4-1/2" / 6" Braking Angle Grinder Kit (model 3670-22) takes a different design approach. The standard-profile body supports both 4-1/2" and 6" discs, giving you flexibility across a wide range of grinding, cutting, and surface prep tasks.

Powered by the POWERSTATE™ Brushless Motor, this kit delivers 9,000 RPM and matches the output of a 13A corded tool. It ships with two M18 REDLITHIUM FORGE™ 8.0Ah batteries, an M12/M18 charger, a contractor bag, a Type 27 guard, a Type 1 guard, a spanner wrench, and a side handle.

Key Specifications and Pricing

• Model: Milwaukee® M18 3670-22
• Disc Size: 4-1/2" / 6"
• Motor: POWERSTATE™ Brushless
• Max Speed: 9,000 RPM
• Equivalent Corded Power: 13A
• Battery: 2x REDLITHIUM FORGE™ 8.0Ah
• Switch Type: Paddle
• Arbor Size: 5/8-11
• Included Extras: Type 27 Guard, Type 1 Guard, Spanner Wrench, Side Handle, Contractor Bag
• Price at GenuineTools: $379.99

Best For

The 3670-22 is the right pick for professionals who need 13A corded-equivalent power with the freedom of cordless and the flexibility to run both 4-1/2" and 6" discs. That dual disc compatibility makes it adaptable across heavy grinding, rebar cutting, and weld cleanup on structural steel. The RAPIDSTOP™ brake stops disc rotation quickly after you release the paddle, adding an important layer of safety during high-intensity use.

The FORGE 8.0Ah batteries included in this kit give you extended runtime for sustained heavy-duty work. If your work demands maximum power from a cordless tool, this kit delivers.

3. Milwaukee® M18 2886-20

The Milwaukee® M18 2886-20 has a flathead design that especially works for tight spaces. 

The Milwaukee® M18 FUEL™ 5" Flathead Braking Grinder with Paddle Switch (model 2886-20) is the access-focused option in this lineup, built around a low-profile flathead design that the other two kits don't have. The flathead profile sits significantly lower than a standard angle grinder, letting you grind flush against surfaces and reach corners and tight spaces where a traditional grinder body won't fit, a design advantage that's particularly valuable in confined jobsite conditions.

Key Specifications and Pricing

• Model: Milwaukee® M18 2886-20
• Disc Size: 5" Flathead
• Motor: POWERSTATE™ Brushless
• Max Speed: 8,500 RPM
• Equivalent Corded Power: 11A
• Battery: M18™ REDLITHIUM™ HIGH OUTPUT™ XC6.0 (sold separately)
• Switch Type: Paddle (No Lock)
• Arbor Size: 5/8-11
• Weight: 2.79 lb
• Price at GenuineTools: $166.99 (tool only) 

Note that the 2886-20 is sold as a bare tool. However, it pairs well with the M18 REDLITHIUM™ HIGH OUTPUT™ XC6.0 batteries, which provides 50% more power while running 50% cooler than standard M18 packs. If you're already invested in the M18 ecosystem, this is an extremely cost-effective way to add a high-performance grinder to your arsenal.

Best For

The 2886-20 is a strong option for existing Milwaukee® M18 users who already have batteries and a charger, and need a low-profile flathead grinder for tight, hard-to-reach spaces. At 2.79 lb, it's also the lightest of the three options covered here, making it a strong choice for overhead grinding work or extended sessions where fatigue management matters. The 8,500 RPM speed is consistent with Milwaukee's other M18 FUEL standard-size grinders, making it well suited for disc cutting and light material removal tasks.

Best Milwaukee® Angle Grinders: Summary Table

Get Your Milwaukee® Angle Grinder From GenuineTools

You can shop for authentic Milwaukee® power tools and accessories at GenuineTools.

Finding the right angle grinder comes down to matching the tool's power, disc size, and profile to your typical jobsite demands. Whether you need the heavy-duty 13A equivalent output of the 3670-22 or the tight-space access of the 2886-20 flathead, investing in the M18 FUEL™ platform ensures you get corded-level performance without the hassle of cables. 

At GenuineTools, we carry a wide selection of professional-grade Milwaukee® M18 FUEL™ angle grinder kits (including everything covered here) alongside other power tools and accessories from trusted brands. Every item we ship is brand-new and factory-sealed in original manufacturer packaging. No refurbished units, no open-box surprises, no exceptions.

GenuineTools carries authentic Milwaukee® that are affordably priced at up to 60% off the MSRP. 

Our 30-day return policy means you order with confidence. Approved returns are refunded fast, no hassle. Check our Trustpilot reviews from verified buyers who've put our service to the test. 

Pick the Milwaukee® M18 FUEL™ grinder that fits your work, order today at GenuineTools, and get a factory-sealed tool at up to 60% off MSRP shipped to your door in as little as 1 business day.

Shop Milwaukee® Angle Grinders at GenuineTools →

Frequently Asked Questions (FAQs)

Do All Milwaukee® M18 FUEL Angle Grinders Come with a Battery and Charger?

No. Milwaukee® sells many of their angle grinders as bare tools only (no battery, no charger), which are designated with a -20 suffix in the model number. Kits that include batteries and a charger typically carry a -22 suffix. 

Are Milwaukee® M18 Angle Grinder Batteries Interchangeable with Other M18 Tools?

Yes, completely. Every M18 battery (a standard pack, an XC6.0 HIGH OUTPUT™, or a FORGE 8.0Ah) works across the entire M18 platform, which includes 300+ tools. That means the batteries included with your angle grinder kit can also power your M18 drill, circular saw, vacuum, or any other M18 tool you already own. 

What Is the RAPIDSTOP™ Brake and Why Does It Matter?

The RAPIDSTOP™ Brake is an electronic braking system built into Milwaukee®'s M18 FUEL™ angle grinders that stops the spinning disc in 2 seconds or less after releasing the paddle switch. On a standard grinder, the wheel can keep spinning for several seconds after you let go, which is a real injury risk, especially in tight spaces or when you need to set the tool down quickly.

What Size Grinding and Cutting Discs Are Compatible With Milwaukee® M18 FUEL Angle Grinders?

Disc compatibility varies by model: the 2882-22 accepts 4-1/2" and 5" discs, the 3670-22 supports 4-1/2" up to 6" discs for a wider range of cutting and grinding applications, and the 2886-20 is built specifically for 5" discs. All three use the industry-standard 5/8"-11 spindle thread, so they work with widely available grinding wheels, cut-off discs, and flap discs from Milwaukee® and other major accessory brands.

Does GenuineTools Carry Milwaukee® M18 FUEL Angle Grinders?

Yes. GenuineTools carries genuine Milwaukee® M18 FUEL™ angle grinder kits, including the models covered earlier. If you're a contractor managing a full crew or a dedicated DIYer who wants professional-grade tools, Milwaukee®'s M18 FUEL™ angle grinder kits deliver real corded-equivalent power with the freedom of cordless.

 

*Note: Pricing and/or product availability mentioned in this post are subject to change. Please check the GenuineTools website for current pricing and stock information before making a purchase.