Model#: MILN2721-20

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Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
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New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Milwaukee 2721-20 M18 FUEL SAWZALL Reciprocating Saw with ONE-KEY Technology (Tool Only)

  • Milwaukee 2721-20 M18 FUEL SAWZALL Reciprocating Saw with ONE-KEY Technology (Tool Only)
  • Note: Battery & Charger sold separately
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Frequently Bought Together


The M18 FUEL SAWZALL Reciprocating Saw cuts faster than its corded counterparts and offers up to 2x more runtime and 5x longer tool life than competitive saws. The POWERSTATE brushless motor provides cutting power that has only been associated with corded tools. The M18 REDLITHIUM Battery Pack delivers more runtime and provides more work per charge and more work over the life of the pack than competitive batteries. The saw's REDLINK PLUS Intelligence ensures optimized performance and protection from overloading, overheating and over-discharging. The 18V lithium-ion SAWZALL features an adjustable shoe, integrated LED light, and a hang hook for convenient storage on the job.
  • POWERSTATE brushless motor delivers constant power under heavy load for maximum performance
  • REDLINK PLUS intelligence system ensure optimal performance and overload protection to prevent damage during heavy applications
  • REDLITHIUM battery pack provides superior power, performance and runtimes than competing battery packs
  • ONE-KEY compatibility allows customization, tracking and tool management
  • Easily toggle between four custom performance profiles saved within the tools memory
  • QUIK-LOK universal blade clamp system accepts all recip saw blades with a concealed keyless clamp system
  • Keyless adjustable shoe allows users to easily change position to extend blade life
  • Integrated LED light illuminates the workpiece for improved visibility
  • M18 FUEL SAWZALL Reciprocating Saw w/ ONE-KEY Technology - 2721-20
  • Tool Only - Battery & Charger Sold Separately


Series: FUEL
Cordless: Yes
Length: 17.75 in.
Weight: 7.4 lbs.
Adjustable Shoe: Yes
Batteries Included: 0
Battery System: M18
Blade Clamp Type: QUIK-LOK Universal
Bluetooth Compatibility: No
Case Included: No
Charger Included: No
Keyless/keyed blade change: Keyless Blade Change
Motor Type: Brushless
No-Load Speed (SPM): 0 - 3000
Powered Tool Power Source: Electric - Cordless
Stroke Length: 1-1/8 in
Variable Speed: Yes
Vibration Dampening: No
Voltage: 18V
Wifi compatibility: Yes



3.8 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Yes, I would recommend this to a friend (1)
Easy To Use (1)
Best Uses
Jobsite (1)
Works great so far
Bought in the the bundle with a screwdriver and the impact driver, half a year ago. Don't use the latter much yet, but the sawzall is in use at least weekly. Mainly for the gardening purposes - got a large, dilapidated garden to keep recently.
It is also super helpful when making garden fixtures out of metal and plastic, cutting things is super easy now.
And with the new 12.0HD battery it would go all day, I get tired sooner than it runs out of power.

I only wish that the build quality was sturdier, as the saw feels a bit flimsy in hands. Not that it is going to be a problem for me, as I don't do really heavy-duty work, but still.
June 27, 2019
Originally posted at
This works great! cut down fence posts, cut apart car body's, cut exhausts apart. It doesn't miss a lick, the blade quick-disconnect can be finicky at times, but has never left me needing another tool to remove/install. Can run on a single 5ah battery for a good amount of time.
June 6, 2019
Originally posted at
No do not buy!
This sawzall broke/burned up 1st use! Had to go back to my old hatchet sawzall to finish the job.
January 21, 2019
Originally posted at

Questions & Answers

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Browse 3 questions Browse 3 questions and 3 answers
Is this a reconditioned saw??
Levi F on Aug 24, 2017
BEST ANSWER: No and it's the best battery sawzall I ever used
Which m18 battery. Xc5.0 xc6.0 xd9.0??
Joe S on Nov 18, 2018
BEST ANSWER: You can use all three, the battery will only have to be in the M18 family. You can use any amp hour battery for this model.

New Vs. Reconditioned

What's the difference between New and Factory-Reconditioned?

Factory-Reconditioned products have been returned to the manufacturer and are restored to like-new operating condition; they go through a rigorous testing and inspection process. Plus, they offer a significant savings vs. new.
  • Reconditioned products may have minor cosmetic blemishes or scratches that do not affect item performance.
  • Reconditioned products may not come with all of the consumables the new version comes with (bits, sanding pads/papers, cases, etc.).
  • Both come with a manufacturer warranty and are covered by our Money Back Guarantee; New is 30 days, Reconditioned is 120 days.
Condition: New Factory Reconditioned
Features: Same Same
Specs: Same Same
Includes: M18 FUEL SAWZALL Reciprocating Saw w/ ONE-KEY Technology - 2721-20,
Tool Only - Battery & Charger Sold Separately
M18 FUEL SAWZALL Reciprocating Saw w/ ONE-KEY Technology - 2721-80,
Battery & Charger Sold Separately
Availability: In Stock In Stock
Warranty: 5 Year null