#1 Home Improvement Retailer

Internet # 204410441

Model # 2781-20

Store SKU # 1000793568

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

$17900
Apply Now
Pay $154.00 after $25 OFF your total qualifying purchase upon opening a new card. info
Apply for a Home Depot Consumer Card
  • Delivers maximum power and up to 10X longer motor life
  • Tool-free accessory change and adjustable guard
  • Fully compatible with the M18 system, featuring over 200+ tools
  • View More Details
Store
0 in stock
icon
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy
caret

Product Details

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.
  • Shop All Milwaukee Tools






  • Click here for more information on Electronic Recycling Programs
  • Return Policy

Additional Resources

From the Manufacturer

caret

Specifications

Dimensions: H 8.58 in, W 15 in, D 3.27 in

Dimensions

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

Details

Amperage (A)0Arbor Size0.625
Batteries IncludedNoBattery Amp HoursNo Battery
Battery Power TypeLithium IonBattery Size18-volt, M18
Charger IncludedCharger Not IncludedColor FamilyRed
ConditionNewCordless Tool TypeAngle Grinder
Cordless/CordedCordlessElectronic Speed ControlYes
Grinder Switch TypeSliding SwitchIncludedNo Additional Items Included
Maximum Speed (RPM)8500 RPMMotor TypeBrushless
Number of Total Batteries Included0Power Tool FeaturesAdjustable Handle Position, No Tool Wheel Change
Product Weight (lb.)5.8 lbReturnable90-Day
Tools Product TypePower ToolVariable SpeedNo
Voltage (V)18

Warranty / Certifications

Certifications and ListingsUL ListedManufacturer Warranty5 year tool
caret

Questions & Answers

20Questions
caret
Q:Does the side switch have a lock on it
by|Mar 12, 2021
4 Answers
Answer This Question

A:  if you are talking about the slide switch on to yes it does lock excellent tool I have three of them each employee has one

by|Mar 16, 2021

    A:  Yes switch locks

    by|Mar 14, 2021

      A:  Yes it stays on by itself no need to keep your thumb on it. Works way better than the paddle especially for those hard to reach angles.

      by|Mar 15, 2021

        A:  Yes the slide switch locks in the on position

        by|Mar 15, 2021
          caret
          Q:can the type 27 guard that comes with it be used with type 1 cutoff wheels?
          by|Dec 29, 2020
          0 Answer
          Answer This Question
          caret
          Q:Which model should i get?
          by|Nov 3, 2018
          2 Answers
          Answer This Question

          A:  Slide Switch all day, hands down(IMO) The paddle makes it a bit combersome if your working material in one hand grinder in the other etc. Also with the slide switch you can adjust your hands on the grinder for tight spaces/ accuracy/control and not have to worry about keeping the paddle pressed.

          by|Apr 8, 2020

            A:  I get the slide switch because I can lock the grinder on,

            by|Aug 15, 2020
            1 found this answer helpful
            caret
            Q:Is this a slide switch or slide lock?
            by|Oct 31, 2018
            5 Answers
            Answer This Question

            A:  The slide switch is the lock on feature and stays put when turned on.

            by|Feb 16, 2020
              1 found this answer helpful

              A:  Both you can engage locking mechanism if you want. Make sure you look at paddle grip model and evaluate your application needs.

              by|Feb 16, 2020

                A:  slide lock

                by|Feb 16, 2020

                A:  slide lock

                by|Feb 16, 2020

                  A:  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.

                  by|Feb 16, 2020
                    3 found this answer helpful
                    Showing 1-4 of 20
                    caret

                    Customer Reviews

                    4.8 out of 5
                    (395)
                    • 4.8
                      out of 395 reviews
                    • 97% recommend this product
                    Filter by:
                    Showing 1-10 of 395 reviews
                    Great tool as always!
                    Nice tool I got two of them for work and for home.
                    by
                    • Verified Purchase
                    • Recommended
                    Power tools
                    I started switching out to Milwaukee a few years ago. Milwaukee tools and batteries far out perform all others in my opinion. I purchased air compressor, grinder and yesterday I picked up the power hacksaw.
                    by
                    • Verified Purchase
                    • Recommended
                    Milwakee fuel grinder
                    So handy to not have to lug around an extension cord. I use every day even at home just to make things here and there
                    by
                    • Verified Purchase
                    • Recommended
                    Great machine
                    The grinder is effective, quieter than most other brands i have used. Battery lasts decently well even after many many cuts. The only issue is the guard, will only lock in certain locations of the grinder, not to where the user prefers it to be with their preference.
                    by
                    • Verified Purchase
                    • Recommended
                    M18 fuel does it again!
                    This grinder is a workhorse! Truly lives up to the fuel reputation that I've come to trust when I need a tool that will stand up to tough jobs. Straight out the box I put it to the test chewing up rusted steel for hours and as expected it performed perfectly!
                    by
                    • Verified Purchase
                    • Recommended
                    I’m new to the M18 Fuel Line.
                    I goer started with the usual Drill and Driver kit, and have since added nearly a dozen other tools. I purchased this to clean wrought iron railing around my porch so I could re-paint it. Wow. I am so impressed with the continuous power! I have 2 5.0 and 1 4.0 battery so I have been able to go for about 100 min full steam. So glad to have this in my tool box!!
                    by
                      • Recommended
                      Best cordless grinder yet !
                      Used it for grinding and cutting both light and heavy steel. You can really lay into steel with this grinder and it won’t stop or shut off. I’ve had a Makita and a dewalt. They were both junk. There is no comparison. It will eat through low amp hour batteries if your using it hard, but you can swap them out and keep going. I bought this because I burnt up my corded grinder and I glad I took the chance to try another cordless. Worked great for building my flatbed.
                      by
                        • Recommended
                        Le meilleur pour les travailleurs
                        Super performant,grande autonomie Abordable pour les travailleurs . Jusqu’à présent les outils à batterie Milwaukee sont,à mon avis,de loin supérieurs à toutes concurrences.
                        by
                          • Recommended
                          Great tool
                          I use it for everything from cutting to buffing and polishing. Powerful unit. Maybe bulky for some jobs. The one piece of advice I’d offer is never leave the battery in the tool when not in use. My tool bag got bumped and by the time it got shut off it had cut through and extension cord, a portable light, the tool bag and was working on the pavement.
                          by
                            • Recommended
                            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.
                            by
                            • DIY
                            • Recommended
                            12 found this review helpful
                            Showing 1-10 of 395 reviews

                            Compare Similar Items

                            current product

                            Cordless/Corded

                            Cordless

                            Cordless

                            Cordless

                            Cordless

                            Wheel Diameter (in.)

                            5 in

                            4.5 in

                            5 in

                            4.5 in

                            Power Tool Features

                            Adjustable Handle Position, No Tool Wheel Change

                            Adjustable Handle Position, No Tool Wheel Change, Spindle Lock

                            Adjustable Handle Position, Lock On Switch, Spindle Lock, Variable Speed

                            Adjustable Handle Position, No Tool Wheel Change, Spindle Lock

                            Amperage (A)

                            0

                            0

                            5.0 A

                            0

                            Voltage (V)

                            18

                            18

                            18 V

                            18