Milwaukee 2781-20 M18 FUEL 4-1/2″ / 5″ Grinder with Slide Switch Lock-On – Cordless Power Tool
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- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $100
M18 FUEL 4-1/2″ / 5″ Grinder with Slide Switch Lock-On – Cordless Power Tool
The Milwaukee M18 FUEL 4-1/2″ / 5″ Grinder (2781-20) is the world’s first cordless grinder to deliver the power of a corded model, offering unmatched performance, durability, and convenience. Designed for demanding professionals, this grinder provides up to 2X more run time and 10X longer motor life for superior productivity on every job.
Powered by the POWERSTATE™ Brushless Motor, this tool delivers maximum sustained power for tough grinding, surface preparation, and cutting applications. The REDLINK PLUS™ Intelligence system ensures optimized performance and protects the tool from overload and overheating. The REDLITHIUM XC5.0 Battery Pack (sold separately) offers 4X more run time and 20% more power for extended use.
With a thin, balanced body design and an anti-vibration side handle, the M18 FUEL™ Grinder provides ultimate comfort and control. It features 100% tool-free accessory changes and guard adjustments to reduce downtime, while the slide switch with lock-on enhances ease of use during extended grinding tasks.
Key Features:
- POWERSTATE Brushless Motor – Provides maximum power with up to 10X longer motor life.
- REDLINK PLUS Intelligence – Prevents overloads and ensures optimal performance with advanced electronic communication.
- REDLITHIUM XC5.0 Battery Compatibility – Offers 2X more run time and superior durability (battery sold separately).
- Tool-Free Design – Quick accessory and guard changes without a wrench for maximum productivity.
- Slide Switch with Lock-On – Reduces fatigue during continuous use.
- Durable Construction – Same metal housing and gearing system as Milwaukee’s corded grinders.
- Optimized Balance and Comfort – Thin body design and vibration reduction for better handling.
Included Components:
- (1) M18 FUEL™ 4-1/2″ / 5″ Grinder with Slide Switch Lock-On (2781-20)
- Battery and charger sold separately
Technical Specifications:
| Specification | Details |
|---|---|
| Model Number | 2781-20 |
| Battery System | M18™ |
| Power Source | Cordless |
| Arbor Size | 5/8″-11 |
| Speed | 8,500 RPM |
| Switch Type | Slide with Lock-On |
| Trigger Lock | Yes |
| Tool-Free Guard | Yes |
| Vibration Reduction | Yes |
| Length | 15 in |
| Weight | 5.8 lbs |
| Voltage | 18V |
| Warranty | 5 Year Limited Warranty |
The M18 FUEL™ 4-1/2″ / 5″ Grinder with Slide Switch Lock-On provides unmatched cordless performance with the power and durability of a corded tool — a must-have for professionals seeking high efficiency and mobility.
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Shipping policy
At our Company, we understand the importance of timely delivery. We offer a variety of shipping options to suit your needs, including standard, expedited, and express shipping. Our dedicated team works diligently to process and dispatch your orders promptly, aiming to deliver them to your doorstep within the estimated timeframe.
We strive to provide fast and reliable shipping to our customers. Here’s everything you need to know about our shipping process:
- Dispatch: Within 24 Hours
- Free shipping across all products on a minimum purchase of $99.
- International delivery time 5 to 7 business days
- Cash on delivery might be available
- Easy 30 days returns and exchanges
Please note that delivery times are estimates and may vary depending on factors such as product availability, destination, and carrier delay
Returns policy
We want you to be completely satisfied with your purchase from our website. If for any reason you are not entirely happy with your order, we’re here to help. Certain exclusions and conditions may apply, so we encourage you to review our detailed return policy for more information. Rest assured, our goal is to ensure your complete satisfaction with every purchase you make from our website
- Returned items must be unused, undamaged, and in the same condition as received.
- Original tags, labels, and packaging must be intact and included with the returned item.
- Proof of purchase, such as your order confirmation or receipt, is required for all returns.












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