Internet #204410441

Model # 2781-20

0045242309399

M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in. /5 in. Grinder W/ Slide Switch (Tool-Only)

  • Delivers maximum power and up to 10X longer motor life
  • Tool-free accessory change and adjustable guard
  • Part of the M18 System, featuring over 175+ tools
$ 179 00
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Frequently Bought Together

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Product Overview

  • Delivers maximum power and up to 10X longer motor life
  • Tool-free accessory change and adjustable guard
  • Part of the M18 System, featuring over 175+ tools
The world’s first cordless grinder delivers the power of a corded grinder with up to 2X more run time and up to 10X longer motor life. The M18 FUEL 4-1/2 in. / 5 in. Grinder supplies maximum sustained power to complete the toughest grinding, surface preparation and cutting applications. The POWERSTATE Brushless Motor provides up to 10X longer motor life and lower cost of ownership. The M18 REDLITHIUM XC5.0 Battery Pack (not included) delivers up to 4X more run time and 20% more power. The grinder features REDLINK PLUS Intelligence, the most advanced system of cordless power tool electronics, for maximum performance. The 18-Volt lithium-ion grinder’s thin body design gives it optimized balance to rest easily in your hands. Tool-free accessory changes and guard adjustments mean less downtime during work. The grinder is built with the same tool body, gearing system and anti-vibration side handle as Milwaukee’s high performance corded grinders for maximum durability on the job. Grinding wheel sold separately.
  • POWERSTATE brushless motor: delivers maximum power and up to 10X longer motor life
  • REDLINK PLUS intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • REDLITHIUM XC 5.0 battery pack (not included) provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life
  • Power to grind: world’s first cordless grinder with corded performance
  • DURABILITY: same metal housing and gearing system as legendary high performance corded grinders
  • 100% tool free: make all accessory changes and guard adjustments without a wrench for increased productivity
  • Slide switch: reduces user fatigue
  • Tool-only (no battery or charger included)
  • Compatible with all M18 batteries
  • 5-year tool warranty
  • Arbor size: 5/8 in. to 11 in.
  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Delivers maximum power and up to 10X longer motor life
  • Tool-free accessory change and adjustable guard
  • Part of the M18 System, featuring over 175+ tools
Model #: 2781-20
Internet #: 204410441

The world’s first cordless grinder delivers the power of a corded grinder with up to 2X more run time and up to 10X longer motor life. The M18 FUEL 4-1/2 in. / 5 in. Grinder supplies maximum sustained power to complete the toughest grinding, surface preparation and cutting applications. The POWERSTATE Brushless Motor provides up to 10X longer motor life and lower cost of ownership. The M18 REDLITHIUM XC5.0 Battery Pack (not included) delivers up to 4X more run time and 20% more power. The grinder features REDLINK PLUS Intelligence, the most advanced system of cordless power tool electronics, for maximum performance. The 18-Volt lithium-ion grinder’s thin body design gives it optimized balance to rest easily in your hands. Tool-free accessory changes and guard adjustments mean less downtime during work. The grinder is built with the same tool body, gearing system and anti-vibration side handle as Milwaukee’s high performance corded grinders for maximum durability on the job. Grinding wheel sold separately.

  • POWERSTATE brushless motor: delivers maximum power and up to 10X longer motor life
  • REDLINK PLUS intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • REDLITHIUM XC 5.0 battery pack (not included) provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life
  • Power to grind: world’s first cordless grinder with corded performance
  • DURABILITY: same metal housing and gearing system as legendary high performance corded grinders
  • 100% tool free: make all accessory changes and guard adjustments without a wrench for increased productivity
  • Slide switch: reduces user fatigue
  • Tool-only (no battery or charger included)
  • Compatible with all M18 batteries
  • 5-year tool warranty
  • Arbor size: 5/8 in. to 11 in.
  • Click here for more information on Electronic Recycling Programs

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Key Features

Product Overview
Key Features
  • Delivers maximum power and up to 10X longer motor life
  • Tool-free accessory change and adjustable guard
  • Part of the M18 System, featuring over 175+ tools
The world’s first cordless grinder delivers the power of a corded grinder with up to 2X more run time and up to 10X longer motor life. The M18 FUEL 4-1/2 in. / 5 in. Grinder supplies maximum sustained power to complete the toughest grinding, surface preparation and cutting applications. The POWERSTATE Brushless Motor provides up to 10X longer motor life and lower cost of ownership. The M18 REDLITHIUM XC5.0 Battery Pack (not included) delivers up to 4X more run time and 20% more power. The grinder features REDLINK PLUS Intelligence, the most advanced system of cordless power tool electronics, for maximum performance. The 18-Volt lithium-ion grinder’s thin body design gives it optimized balance to rest easily in your hands. Tool-free accessory changes and guard adjustments mean less downtime during work. The grinder is built with the same tool body, gearing system and anti-vibration side handle as Milwaukee’s high performance corded grinders for maximum durability on the job. Grinding wheel sold separately.
  • POWERSTATE brushless motor: delivers maximum power and up to 10X longer motor life
  • REDLINK PLUS intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • REDLITHIUM XC 5.0 battery pack (not included) provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life
  • Power to grind: world’s first cordless grinder with corded performance
  • DURABILITY: same metal housing and gearing system as legendary high performance corded grinders
  • 100% tool free: make all accessory changes and guard adjustments without a wrench for increased productivity
  • Slide switch: reduces user fatigue
  • Tool-only (no battery or charger included)
  • Compatible with all M18 batteries
  • 5-year tool warranty
  • Arbor size: 5/8 in. to 11 in.
  • Click here for more information on Electronic Recycling Programs

Product Overview

  • Delivers maximum power and up to 10X longer motor life
  • Tool-free accessory change and adjustable guard
  • Part of the M18 System, featuring over 175+ tools
Model #: 2781-20
Internet #: 204410441

The world’s first cordless grinder delivers the power of a corded grinder with up to 2X more run time and up to 10X longer motor life. The M18 FUEL 4-1/2 in. / 5 in. Grinder supplies maximum sustained power to complete the toughest grinding, surface preparation and cutting applications. The POWERSTATE Brushless Motor provides up to 10X longer motor life and lower cost of ownership. The M18 REDLITHIUM XC5.0 Battery Pack (not included) delivers up to 4X more run time and 20% more power. The grinder features REDLINK PLUS Intelligence, the most advanced system of cordless power tool electronics, for maximum performance. The 18-Volt lithium-ion grinder’s thin body design gives it optimized balance to rest easily in your hands. Tool-free accessory changes and guard adjustments mean less downtime during work. The grinder is built with the same tool body, gearing system and anti-vibration side handle as Milwaukee’s high performance corded grinders for maximum durability on the job. Grinding wheel sold separately.

  • POWERSTATE brushless motor: delivers maximum power and up to 10X longer motor life
  • REDLINK PLUS intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • REDLITHIUM XC 5.0 battery pack (not included) provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life
  • Power to grind: world’s first cordless grinder with corded performance
  • DURABILITY: same metal housing and gearing system as legendary high performance corded grinders
  • 100% tool free: make all accessory changes and guard adjustments without a wrench for increased productivity
  • Slide switch: reduces user fatigue
  • Tool-only (no battery or charger included)
  • Compatible with all M18 batteries
  • 5-year tool warranty
  • Arbor size: 5/8 in. to 11 in.
  • Click here for more information on Electronic Recycling Programs

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Customers Also Compared These

Compare Similar Products
Brand Milwaukee Milwaukee Milwaukee Milwaukee
Name M18 18-Volt Lithium-Ion Cordless 4-1/2 in. Cut-Off/Grinder (Tool-Only) M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in. /5 in. Grinder W/ Slide Switch (Tool-Only) M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in. / 5 in. Grinder with Paddle Switch (Tool-Only) M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4 1/2 in to 5 in. Braking Grinder (Tool-Only)
Price
$119.00
$179.00
$179.00
$229.00
Ratings (1210) (122) (780) (82)
Amperage (amps) 0 0 0 0
Power Tool Features Adjustable Handle Position,No Tool Wheel Change,Spindle Lock No Additional Features No Additional Features No Tool Wheel Change
Cordless/ Corded Cordless Cordless Cordless Cordless
Wheel Diameter (in.) 4.5 5 5 5 in
Voltage (volts) 18
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
3.27
Product Height (in.)
8.58
Product Width (in.)
15
Wheel Diameter (in.)
5

Details

Amperage (amps)
0
Arbor Size
0.625
Color Family
Red
Condition
New
Cord Length (ft.)
0
Corded Tool Type
Angle Grinder
Cordless/ Corded
Cordless
Electronic Speed Control
Yes
Grinding Wheel Included
No
Maximum Speed (rpm)
8500
Power Tool Features
No Additional Features
Product Weight (lb.)
5.8lb
Returnable
90-Day
Spindle Lock
Yes
Tools Product Type
Power Tool
Variable Speed
No

Warranty / Certifications

Manufacturer Warranty
5 year tool

Specifications

Dimensions

Product Depth (in.)
3.27
Product Height (in.)
8.58
Product Width (in.)
15
Wheel Diameter (in.)
5

Details

Amperage (amps)
0
Arbor Size
0.625
Color Family
Red
Condition
New
Cord Length (ft.)
0
Corded Tool Type
Angle Grinder
Cordless/ Corded
Cordless
Electronic Speed Control
Yes
Grinding Wheel Included
No
Maximum Speed (rpm)
8500
Power Tool Features
No Additional Features
Product Weight (lb.)
5.8lb
Returnable
90-Day
Spindle Lock
Yes
Tools Product Type
Power Tool
Variable Speed
No

Warranty / Certifications

Manufacturer Warranty
5 year tool

Questions & Answers

Is this a slide switch or slide lock?

Asked by: TodoList
The switch is more of a slide lock. You have to push down and slide forward. It will not let you simply slide the switch on. Once it is on it remains on until you move the switch back, the switch does not return on its own.
Answered by: Chris
Date published: 2018-11-06

Is there an accessory that I can use to utilize this as a car polisher?

Asked by: Francisco
i do not think so it is a 4 1/2" grinder
Answered by: magic1953
Date published: 2018-11-02

Hello, do you sell EU version on the charher? 230Volt?

Asked by: Hoogan
no
Answered by: magic1953
Date published: 2018-11-02

can this grinder accept 7/8 arbor cutting wheels and grinding wheels? if not is there a adapter y...

can this grinder accept 7/8 arbor cutting wheels and grinding wheels? if not is there a adapter you can use or switch out the stock one?
Asked by: jbird7011
yes
Answered by: Masterfarrier
Date published: 2018-03-01
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Customer Reviews

Milwaukee M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 4-1/2 in. /5 in. Grinder W/ Slide Switch (Tool-Only) is rated 4.8 out of 5 by 54.
Rated 5 out of 5 by from Best Available Cordless Grinder I was very excited to discover Milwaukee is now offering their cordless saws and grinders in the M18 Fuel Line of tools. The Milwaukee 2781-20 is my first cordless grinder, and I have been very impressed with it’s performance and features. The Milwaukee 2781 Grinder has a very compact design, yet the ergonomics are excellent and it has very low vibration when using the tool. The new brushless motor provides plenty of power and extended battery use. The unit comes with a Type 27 Wheel Guard (for grinding), and more importantly a Type 1 (enclosed) Wheel Guard, which is mandatory for using flat metal cutting wheels. The wheel guards have 5 adjustment settings (tooless), and the slide switch has a cruise control setting. I highly recommend the new Milwaukee 2781 for anyone in the market for a cordless grinder, and appreciates having the best available technology. You will not be disappointed.
Date published: 2013-10-28
Rated 5 out of 5 by from Nothing but the best M-18 Brushless grinder ever! I order this M-18 Brushless Grinder. Hands down!! best grinder on the market!!. I Did my research, and No joke when they said it would be compatible to a corded unit.
Date published: 2013-10-25
Rated 4 out of 5 by from I bought two Milwaukee M18 angle grinders from Home Depot;... I bought two Milwaukee M18 angle grinders from Home Depot; because, the price was fair and I didn't have any concerns that might be associated with other online merchants. Home Depot and I will absolutely be doing business in the future.
Date published: 2019-04-22
Rated 5 out of 5 by from Strong and durable. Doesn't have the rough vibrations other cordless... Strong and durable. Doesn't have the rough vibrations other cordless grinder's have. 10/10 will purchase a second.
Date published: 2019-05-07
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-05-08
Rated 5 out of 5 by from Awesome Just as expected from a milwaukee product it's like they say nothing but heavy duty
Date published: 2013-11-12
Rated 5 out of 5 by from THUMBS UP FROM ME, GREAT ADDITION TO MY TOOL CHEST This tool is a welcome and additions to my tool chest, and fills a gap I had with giving me more ability to cut/sharpen/grind metal. I will start with discussing the M18 battery system. The more I invest in Milwaukee tools, the more I fall in love with this battery system. The interchangeability with the batteries on all their M18 tools has been a great feature and it keeps me working without compromising performance. Furthermore these batteries can easily last all day (for most of the jobs I have used them on,) and if you are concerned that you've been working all day and might be running low, there is a battery light indicator on the front of the battery. I have heard there are slim-line batteries available, which are a little bit smaller than the regular size batteries that came with the unit, but this is something I need to research further as a possible upgrade to the set. The cut-off grinder has a great look and feel to it. They put some thought into the ergonomics with the large paddle switch which can be used comfortably with safety gloves on. Thus far I have used the tool for sharpening my lawnmower blades and to cut some old chain link fence, and it did an excellent job! I am looking forward to trying it on some bigger jobs in the near future. I like the overload protection, which will shut the tool off if you are pushing the grinder too hard, it prevents overheating and should elongate the life of the tool. The guard that comes on the tool is easily adjustable, and the handle can be switched on either the left or right side. According to the Milwaukee website, the tool has the capability to reach 8,500 RPM, which is some great power and made the jobs I have used it on a breeze. Overall, another great tool from Milwaukee that has added a lot more functionality to my tool chest giving me the ability to cut/grind/sharpen metal. Milwaukee built it with ergonomics in mind, and with the goal of making the battery system convenient (cordless) without compromising performance. Thumbs up from me!
Date published: 2014-02-10
Rated 5 out of 5 by from tool is a really good one all other grinders I have used leave my hands numb or tingling this one... tool is a really good one all other grinders I have used leave my hands numb or tingling this one doesn't vibrate an is well balanced ,
Date published: 2019-02-01
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