Stanley FatMax 18V V20 Angle Grinder Review

If you’re looking for a cordless grinder that fits into the Stanley V20 ecosystem, the Stanley FatMax 18V V20 125mm Angle Grinder is built for general cutting, grinding, and polishing tasks. This is a skin (bare unit), meaning it runs on Stanley V20 batteries and is best suited for users who already own the system.

It sits in the mid-range cordless grinder category and is designed to balance power, safety, and portability for DIY and light trade use.

More Information

Table of Contents

• Why this grinder is worth considering
• Main features
• Key specifications
• Who it suits
• Important points before you buy
• What is in the box
• FAQs

Why this grinder is worth considering

The biggest advantage of this model is cordless flexibility. You can use it anywhere — workshop, driveway, job site — without needing power leads or extension cords.

Stanley’s brushless version delivers up to 8,000 RPM, which provides enough speed for cutting metal, grinding welds, sharpening tools, and light polishing tasks. The brushless motor also improves efficiency, reduces maintenance, and extends tool life. :contentReference[oaicite:1]{index=1}

Another standout feature is the electronic brake, which can stop the disc in around 3 seconds. This is a strong safety addition compared to older grinders that spin down slowly. :contentReference[oaicite:2]{index=2}

It also includes a keyless safety guard and side handle, making it easier to adjust and control during use.

Main features

• 18V cordless operation (Stanley FatMax V20 system)
• Brushless motor for efficiency and longer life
• Up to 8,000 RPM for cutting and grinding
• Electronic brake for fast disc stop (~3 seconds)
• 125mm disc size (standard for general use)
• Keyless safety guard for quick adjustments
• Side handle for controlled two-handed operation
• Paddle switch and lock-on button for safety and continuous use

Key specifications

Specification	Details
Brand	Stanley FatMax
Model	SFMCG700B-XE
Voltage	18V
Disc Size	125mm
Speed	Up to 8,000 RPM
Motor	Brushless
Weight	Approx. 1.8kg
Battery Included	No (bare unit)

Who it suits

This angle grinder is ideal for:

• DIY users and home workshops
• Cutting metal, bolts, and tiles
• Grinding welds and smoothing edges
• Sharpening tools
• Light fabrication and automotive work
• Anyone already using Stanley V20 batteries

It is best suited to general-purpose grinding rather than heavy industrial or all-day commercial use.

Important points before you buy

This is a bare unit (skin), so you will need a compatible Stanley V20 battery and charger.

Battery-powered grinders are very convenient but will have limited runtime compared to corded grinders, especially under heavy cutting loads. Using a higher-capacity battery (4.0Ah or above) is recommended.

While powerful for its class, it is not designed to replace a high-powered corded grinder for continuous heavy-duty work.

What is in the box

• Stanley FatMax 18V V20 Angle Grinder (bare unit)
• Side handle
• Disc change spanner

Final thoughts

The Stanley FatMax 18V V20 Angle Grinder is a solid cordless grinder that balances power, safety, and portability. With its brushless motor, electronic brake, and standard 125mm disc size, it handles most everyday cutting and grinding tasks well.

If you already own Stanley V20 batteries, this is a very practical addition to your tool kit. For DIY and light trade work, it offers a good mix of performance and convenience.

Frequently Asked Questions

What size discs does it use?

It uses 125mm discs, which is the standard size for general-purpose grinders.

How fast does it spin?

Up to 8,000 RPM. :contentReference[oaicite:3]{index=3}

Does it include a battery?

No, this is a bare unit.

Is it brushless?

Yes, it uses a brushless motor for better efficiency and longer lifespan. :contentReference[oaicite:4]{index=4}

Is it safe to use?

It includes safety features such as a paddle switch, electronic brake, and side handle for improved control. :contentReference[oaicite:5]{index=5}