M18 FUEL™ 4-1/2"-6" Braking Grinder, Slide Switch
$279.00
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- Free shipping over $199Under that, rates are calculated at checkout.
- Free in-store pickupSpringfield or Jacksonville. In-stock tools are ready as soon as you order, during store hours.
- Full Milwaukee factory warrantyWe are an authorized dealer, so your warranty is valid.
- 30-day returnsUnused and in the original box.
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Details
The Milwaukee M18 FUEL 4-1/2" – 6" Braking Grinder with Slide Switch (model 3671-20) is a cordless angle grinder that runs on the M18 battery system and generates 13A corded-equivalent power for tough grinding and cutting jobs. This listing is for the bare tool only — an M18 battery and charger are sold separately.
What it does well
- POWERSTATE Brushless Motor delivers up to 9,000 RPM to remove material quickly.
- RAPIDSTOP Brake stops most wheels in under 2 seconds with an abrasive disc.
- Accepts 4-1/2" through 6" discs on a 5/8"-11 spindle for common grinding and cutting accessories.
- Electronic clutch for kickback protection, plus overload protection and REDLINK PLUS Intelligence for tool and battery communication.
Is this the right grinder for you?
Choose this grinder if you already run M18 batteries and want a slide-switch grinder that handles both 4-1/2" and larger 6" wheels for a wider range of applications. The slide switch and anti-vibration side handle favor extended, controlled cutting and grinding. Because it ships as a bare tool, it is best for pros who already own M18 batteries and a charger; if you need those, look for a kit instead.
What's in the box
- M18 FUEL 4-1/2" – 6" Braking Grinder, Slide Switch (3671-20)
- Anti-vibration side handle
- M18 battery and charger sold separately
Specifications
| Model | 3671-20 |
| Disc diameter | 4-1/2" – 6" |
| Spindle | 5/8"-11 |
| Maximum RPM | 9,000 |
| Motor | POWERSTATE Brushless |
| Brake | Yes (RAPIDSTOP) |
| Switch type | Sliding switch |
| Handle type | Barrel grip |
| Voltage | 18V |
| Battery system | M18 |
| Number of batteries required | 1 |
| Power source | Cordless |
| Weight (excluding battery) | 5.3 lb |
| Weight (battery installed) | 7.7 lb |
| Depth | 14.75 in |
| Material | Glass-filled nylon · aluminum |
| Color finish | Black · red |
| ONE-KEY enabled | No |
| Country of origin | Vietnam |




