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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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.
Width: 3.5 in.
Height: 6.5 in.
Weight: 7.4 lbs.
Adjustable Shoe: Yes
Amp Hour: 9 Ah
Batteries Included: 0
Battery System: M18
Battery Type: Li-Ion
Blade Clamp Type: QUIK-LOK Universal
Bluetooth Compatibility: No
CSA Safety: Yes
Case Included: No
Charger Included: No
Cutting Action: Straight
ETL Safety: Yes
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
UL Safety: Yes
Variable Speed: Yes
Vibration Dampening: No
Voltage: 18V
Wifi compatibility: Yes



4.8 / 5.0
46 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)
Love my Milwaukee tools
I bought a lot of Milwaukee tools, I’m a plumber. My latest purchase was a pro press tool, used about 5 times so far, great tool, thanks Milwaukee
September 5, 2019
Originally posted at
Best on the market
Tried Dewalts corded and cordless, Ryobi etc, nothing comes close to the Milwaukee, love the locking mechanism and the stud grabber. Seems to hold up to water much better than the Dewalts did.
August 31, 2019
Originally posted at
Best sawzall in the market
I'm in the hvac industry and I install units and to run copper line sets and the sawzall is handy when the opening on the plywood is to small to run it through
August 31, 2019
Originally posted at
Powerful with smart features
I’m a DIY home user and this Sawzall kit absolutely meets or exceeds my needs. It is very powerful, especially for a cordless. The kit includes a charger (which can charge both M12 and M18 Milwaukee batteries, two M18 batteries, the tool, and a blade in a custom case (see pictures). The tool has pushbutton variable speed with 5 settings. Quick blade change requires no tools. The adjustable boot is handy. Being an occasional DIY user, I haven’t used the One-Step feature which will save all the tool’s settings to a smart phone for easy recurring uses/settings; but I can see where a pro would find this extremely useful. The batteries have a charge indicator on them, another handy feature. The only downside to the tool is weight: the tool itself weighs 7 lb 7 oz, with battery it’s 9 lb—not a game changer, but something to consider depending on user. This is only my second Milwaukee cordless tool (I bought into a different brand in a big way years ago) and I’m very impressed with their tools. The kit is a bit pricey for an occasional user, but worth the price for a frequent user.
August 28, 2019
Originally posted at
I'm in no fear of tool ever breaking.
Me being an electrician, I use it daily. And I would definitely up grade to a newer model.... If this one ever stops.
August 27, 2019
Originally posted at
Amazing product
Always happy and proud to own your tools and they never quit.
August 27, 2019
Originally posted at
This works better than any Recip/saw i ever owned
easy to handle, cuts like a champ,used on several different materials, impressed !
August 26, 2019
Originally posted at
Easy to hold and balanced. Would definitely buy ag
Use to cut drywall , pipe , and steel rod on a daily basics
August 26, 2019
Originally posted at
Cordless sawzall
Fast easy cutting.
Solid feel great battery life
August 26, 2019
Originally posted at
I love this product
I use it for work as a handyman, as well as diy around the house. I've also used it to cut tree branches. It is as powerful as a corded saw, and is comfortable.
August 25, 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 1 Year