Model#: MILN2785-21HD

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Milwaukee 2785-21HD M18 FUEL 7 in. / 9 in. Large Angle Grinder Kit

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Product Overview


The M18 FUEL 7 in. / 9 in. Large Angle Grinder is the world's first 18v LAG generating the power of a 15A corded large angle grinder, is up to 2LBS lighter, and has 9 in. grinding capacity. Providing high performance, advanced ergonomics & legendary durability, this grinder is designed to complete the toughest grinding, surface preparation, and cutting applications with any 7 in. - 9 in. accessory. The POWERSTATE Brushless Motor provides 6,600 RPM and higher speeds under load for corded grinding/cutting performance. REDLINK PLUS intelligence ensures maximum performance and protection from overload, overheating and over discharge. The M18 REDLITHIUM High Output HD12.0 battery delivers unmatch run-time in all applications. Tool-free accessory changes using the FIXTEC nut and guard adjustments mean less downtime during work.
  • POWERSTATE Brushless Motor: Purposely built for the M18 FUEL 7 in. / 9 in. Large Angle Grinder to generate the power and performance of a 15A corded Large Angle Grinder.
  • REDLITHIUM High Output HD12.0 Battery Pack: Provides 50% more power and runs 50% cooler versus standard REDLITHIUM HD packs. Superior pack construction provides the industry's best protection against jobsite conditions.
  • REDLINK PLUS Intelligence: Ensures optimal performance and provides overload protection to prevent damage to the tool and battery during heavy applications while still maintaining compatibility across the entire M18 System.
  • Corded Performance: World's first 18V Large Angle Grinder
  • 100% Tool Free: Make all accessory changes and guard adjustments without a wrench for increased productivity.
  • Advanced ergonomics for increased mobility and productivity
  • Metal housing & gearing system providing legendary durability
  • Dual action trigger: eliminating accidental trigger actuation
  • Compatible with all M18 Batteries and Tools
  • 2785-20 7 in. / 9 in. Large Angle Grinder
  • (1) M18 REDLITHIUM High Output HD12 Battery Pack
  • (1) M12 & M18 Multi Voltage Rapid Charger
  • Type 27 9 in. Guard
  • (1) Side Handle
  • (1) FIXTEC Nut
  • (1) Backing Flange
  • (1) Wrench
  • (1) Contractor Bag


Series: FUEL
Cordless: Yes
Length: 22.31 in.
Width: 3.4 in.
Height: 5.66 in.
Weight: 11.95 lbs.
Amp Hour: 12 Ah
Arbor Size: 5/8 in - 11
Batteries Included: 1
Battery System: M18
Battery Type: Li-ion
Battery Warranty: 3 Year
Bluetooth Compatibility: No
CSA Safety: No
Case Included: Yes
Case Type: Bag
Charger Included: Yes
ETL Safety: No
Motor Type: Brushless
No-Load Speed (RPM): 6600
Powered Tool Power Source: Electric - Cordless
Spindle Thread: 5/8 in - 11
Switch Settings: Dead Man
Switch Type: Trigger
UL Safety: Yes
Variable Speed: Yes
Voltage: 18V
Wheel Diameter: 7 in / 9 in
Wifi compatibility: No



4.5 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Good grinder for its size and battery powered
I put it to test cutting large it got a bit hot from load but kept cutting. Cutting tile would be easy after that.
August 19, 2019
Originally posted at
I would most definitely buy this product again.
I primarily use the 7" / 9" grinder for material preparation and light finish work at my job as a fabricator. However, on the weekends I used it to prepare tires on my friend's dirt race car. Corded power and very reliable.
August 16, 2019
Originally posted at
Nothing but the best
Use it every day it never comes up short always goes beyond expectations
August 15, 2019
Originally posted at
Not Impressed
The tool overheats very fast and will overheat a 12AMP battery in minutes. I can cut more with the smaller grinder and not overheat the tool.
August 12, 2019
Originally posted at
I`m a plumber,and it`s a plumber`s tool. BIG!
Every job is full of things that need to be ground down, cut , shaped to fit.Being "cordless" alows you to get in to "tight" places. Sometimes your working in wet spots with less danger of "electrocution". There`s not always "power " on the job. Good balance, strong long lasting battery.
August 11, 2019
Originally posted at
Use this grinder a lot, it’s very versatile because of no extension cords and able to switch between the 7” and 9” grinding and cutoff wheels. Best part I don’t have to string out 300 feet of extension cords.
August 11, 2019
Originally posted at
This grinder is a power house
This grinder is just what I was looking for, big wheel and all the power you will need and love the bigger battery also use the battery’s on my other Milwaukee tools !
August 11, 2019
Originally posted at
needs a locking trigger
i do like this grinder. lot of power. as a millwright apprentice whose primary background is welding, the run time is pretty good. i could see an argument about poor run time in other more demanding fields. my biggest knock on the tool is the lack of locking trigger. having become used to locking triggers, this is a major inconvenience as i am used to articulating the grinder in whatever position i need. no locking trigger means i can't do maneuver the grinder 100% how i want. b/c of no locking trigger i can't give it a 5/5 rating.
August 11, 2019
Originally posted at
I would reccomend this product
Lots of power , batteries last prettty good , a little bit on the heavy side.
August 10, 2019
Originally posted at
Solid tool
Use it for cutting concrete, works great and easy to control
August 10, 2019
Originally posted at

Questions & Answers

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Browse 2 questions Browse 2 questions and 1 answer
how do you take the top flange nut off ?
A shopper on Sep 7, 2018
BEST ANSWER: Your question will be best answered by the manufacturer, who can provide the accurate information. The number to reach the technician directly is 1-800-729-3878 or online at
OZZIE on Jul 30, 2018