Milwaukee M12 FUEL Hackzall 2520-21XC, Big Power Little Package

M12 FUEL Hackzall

Milwaukee has been hinting around all week that there was going to be big news coming from the Milwaukee M12 lineup, cat’s out of the bag now. The launch of the M12 FUEL Hachzall 2520-21XC ($199) may be a turning point for some folks to drop their 18V tools and go all M12. It’s hard to get the full understanding because there’s not a great way to measure saw power, like you can with torque in drilling applications. Milwaukee product Manager Tom Simeone says against the competition it is 70% faster cutting, 4x runtime per charge (using 4.0Ah), reduced vibration, all while getting 6x longer tool life.

(coptool video uploaded 4/26/14)

Very impressive numbers however we don’t see this tool’s competition as any of the other 12V Bosch, Dewalt or Makita Saws we tested a while ago. This saw’s real competition is going to be other 18V cordless recip saws. Needless to say we are very excited to get our hands on this tool! For more on this tool in the meantime check out the full Milwaukee press release below and expect a full review from us in May when the product goes to market.

M12 FUEL Hackzall

MILWAUKEE, WI – Milwaukee Tool continues to expand its award-winning FUEL™ offering with the introduction of the industry’s most powerful 12V Reciprocating Saw. Delivering over 4X more run time, up to 70% faster cutting and 6X longer tool life, the M12 FUEL™ HACKZALL® recip saw has a compact, lightweight design for one-handed operation in tight spaces, and features reduced vibration for increased control and accuracy.

As with all M12 FUEL™ products, the new HACKZALL® delivers unmatched power, run-time and durability with three Milwaukee®-exclusive innovations-the POWERSTATE™ Brushless Motor, REDLITHIUM™ XC4.0 Battery Pack and REDLINK PLUS™ Intelligence Hardware and Software.

The POWERSTATE™ Brushless Motor works harder, lives longer, and converts energy into power more efficiently, giving the M12 FUEL™ HACKZALL® the ability to deliver 70% faster cutting with more power under load than some 18V recip saws.

FUEL M12 Hackzall

“This increased performance opens up an application range that 12V recips have not been able to perform in the past,” says Tom Simeone, Group Product Manager for Milwaukee Tool Corporation. “It will handle some of the more challenging cuts in which users would have once had to switch to an 18V tool, such as cuts through dimensional lumber.”

REDLINK PLUS™ Intelligence hardware and software is the most advanced electronic system on the market. It integrates full-circle communication between tool, battery and charger to protect them from overloading, overheating, and over-discharging. These protections help maintain ideal conditions for maximum application performance. Coupled with aggressive gearing and the POWERSTATE™ Brushless Motor, these electronics help the tool deliver the extreme power under load that users will experience.

Powered by Milwaukee REDLITHIUM™ XC4.0 batteries, the M12 FUEL™ HACKZALL® delivers over 4X more cuts per charge than competitive recip saws.  With Milwaukee® durability built into each pack, the REDLITHIUM™ XC4.0 battery delivers best-in-class performance in extreme job-site conditions, operating cooler and performing in climates below 0°F/-18°C with fade free power. A battery fuel gauge also displays remaining charge for less down time on the job.

The M12 FUEL™ HACKZALL® also lives up to Milwaukee’s legendary durability with an all-metal gear case and dual gear design. With the combination of this mechanism, the POWERSTATE brushless motor and REDLINK PLUS intelligence, the new tool provides up to 6X longer life than competitive units.

Available in May of 2014, the new M12 FUEL™ HACKZALL® Recip Saw is a true testament to Milwaukee’s focus on the user and investment in game changing technology.

M12 FUEL™ HACKZALL® Reciprocating Saw Kit (2520-21XC)
5/8” Stroke Length
0-3,000 Strokes Per Minute
13.25” Long
4.1 lbs
Includes M12 FUEL™ HACKZALL® Recip Saw, (1) M12™ REDLITHIUM™ XC 4.0 Extended Capacity Battery Pack, (1) M12™ Charger, a blade & contractor bag

*Also available as a bare tool (2520-20)



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  1. Patrick Diorio says:

    I am a plumbing and heating contractor and this tool will be a perfect fit in my vast array of specialty tools that I need for specific jobs. I hope you can reply to me when it is on the market so I can purchase it immediately.

  2. Sean says:

    Hi guys,

    Which one will you choose comparing with the Bosch Cordless Sabre Saw GSA 10.8V-LI?

  3. Pingback: Milwaukee M12 FUEL 5-3/8” Circular Saw 2530-21XC | The Tool Reporter

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