Milwaukee 2780-20 Milwaukee 2780-20 4-1/2

Printer friendly page

Milwaukee 2780-20 4-1/2" 18V Cordless Grinder.

SKU: 390438
   based on 6 Reviews
100% recommend this product
Was: $ 179.00/ ea
See Sale Price in Cart  Free Shipping!  
Retail: $297.00

  Available to Ship in 1-2 weeks

Ships From Price Qty
Order From Manufacturer
Available to Ship in 1-2 weeks
See In Cart

About the Milwaukee 2780-20

The Milwaukee 2780-20 4-1/2" 18V Cordless Grinder is the first tool of its kind that delivers the convenience of cordless capabilities without sacrificing the speed and power you expect from a corded tool. Milwaukee Tools rates this tool with two times the run time, and ten times the motor life of other cordless tools. New Technological features like the POWERSTATE Brushless Motor, and the M18 REDLITHIUM XC4 Battery Pack (Sold Separately) are the main driving forces that are used to accomplish these superior results. Another feature that Milwaukee included is the design of this Milwaukee 2780-20 4-1/2" Grinder is REDLINK PLUS Intelligence. This state of the art technology provides optimal performance by utilizing an electronic clutch, and total system communication between battery, tool, and charger providing optimal overload protection while minimizing equipment overheating. This 18 volt Lithium Ion grinder is built with the same slim body design, gearing system and anti-vibration side handle as the corded version insuring maximum durability and optimized balance and control. Along with a full 5 year warranty the Milwaukee 2780-20 4-1/2" 18V Cordless Grinder incorporates a Tool-free Design for quick and efficient accessory changes and guard adjustments resulting in less downtime at work.

Product Details

Manufacturer: Milwaukee Electric Tool
Mpn # 2780-20
Shipping Dimensions 14.0" x 3.0" x 8.5"
Weight 6.00 lbs.

Product Features

  • Tool-Only (No Battery, Case or Charger Included)
  • POWERSTATE Brushless Motor
  • REDLINK PLUS Intelligence
  • World's first cordless grinder with corded performance.
  • Same metal housing & gearing system as legendary high performance corded grinders
  • Paddle-switch design
  • 5 Year Warranty
  • 8500 RPM
  • Arbor Size: 5/8" -11


Rated 5 out of 5 based on 6 reviews

Huge time saver Rated 5 by Anonymous
"The new M18 FUEL™ 4-1/2" / 5" Paddle Grinder (2780) saves time looking for a outlet to plug in a extension cord, just pick it up, and do the job. Been using this for the past month+, zip wheels to cut metal, cut bolts off, even cut 1/4" off the bottom of a hollow metal door in place (hanging), and it never quite working, except for changing the battery. Use a sanding flap wheel to grind down bolts, sand paint off, sand and smooth Bondo on metal doors and frames. One of the great additions to my tool bag for going totally cord-less."
Originally posted on Jun/2016

Brilliant piece of equipment Rated 5 by Anonymous
"I was tasked with removing 40 bolted down Diner stools, I initial used a Milwaukee impact driver to remove the nuts, we then had to grind down to ground level the remaking embedded bolts, What a perfect tool to do the task, job done in 30 minutes, no lugging around with 110v transformer, no looking for a power point to plug into. This tool was just perfect for the job, Milwaukee M18 Fuel tools are excellent and fantastically convenient to use."
Originally posted on Jun/2016

excellent grinder,a lot of power Rated 5 by Anonymous
"Milwaukee tools out perform all my other rechargeable tools. The drill has the power & torque of my air drill.The 3/8 & 1/2 impacts has twice the torque of my other cordless impacts.The grinder is the most unbelievable cordless tool in my tool arsenal. The batteries last so long I forget they need to be charged. Milwaukee tools are the big cat daddy of cordless tools."
Originally posted on Jun/2016

Powerhouse Rated 5 by Anonymous
"Light weight but powerhouse tool from day one.Use it every day,with a5.0 battery,which last a long time for a grinder.I know I will have this tool for a long time because it is backed by a great company,thank you for your quality product.Joe"
Originally posted on Jun/2016

Question and Answers

Have a question about this product?

Shopper Award