Model # 2420-21

Internet #202311908

Store SKU #186433

Store SO SKU #186433

Milwaukee M12 12-Volt Lithium-Ion Cordless HACKZALL Reciprocating Saw Kit
0045242226214

Milwaukee

M12 12-Volt Lithium-Ion Cordless HACKZALL Reciprocating Saw Kit

  • Over 70+ tools compatible in the M12 system
  • Delivers up to 3,000 strokes per minute
  • Up to 40% more run-time with Red Lithium batteries
$129.00 /each

Frequently Bought Together

Product Overview

The Milwaukee 2420-21 M12 REDLITHIUM Cordless HACKZALL Reciprocating Saw Kit includes: (1) M12 REDLITHIUM Battery, (2) HACKZALL TM Blades (1) M12 charger and (1) Contractor Bag for powerful cutting on the go. The saw's variable 0 - 3000 strokes per minute (SPM) helps you make fast, precise cuts through a wide range of materials, including drywall, wood and PVC and at 11 in. and 2.6 lbs. its compact and lightweight design gives you control and versatility in tight spaces. The variable speed trigger helps you achieve a controlled cut, while the QUIK-LOK blade clamp offers fast and easy blade changes. Cordless tools powered by REDLITHIUM batteries deliver more torque, more power and longer run time than the competition.

  • Only 11 in. and 2.6 lbs. for cutting in tight spaces
  • 12-Volt REDLITHIUM battery offers longer run time and lighter weight
  • Keyless QUIK-LOK blade clamp allows for quick and easy blade changes
  • All-metal gear case for added durability
  • Variable speed trigger for increased user control
  • Battery fuel gauge displays remaining run time
  • Accepts both HACKZALL and SAWZALL style blades (see related products for listing of HACKZALL blades)
  • Built-in LED light illuminates work surface
  • Includes: (1) 2420-20 HACKZALL M12 cordless lithium-ion reciprocating saw, (1) 48-11-2401 M12 REDLITHIUM battery, (1) 48-59-2401 M12 lithium-ion battery charger, (1) contractor bag
  • REDLITHIUM productivity advantage: 40% more run time, 20% more speed, 20% more torque, fade free power durability, operates down to 0/-18, runs 20% cooler, up to 50% more recharges, no memory effect
  • Compatible batteries: compact 1.5Ah (48-11-2401), compact 2.0Ah (48-11-2420), extra capacity 3.0Ah (48-11-2402), extended capacity 4.0Ah (48-11-2440)
  • Compatible chargers: M12/M18 multi-voltage (48-59-1812), M12 AC/DC (2510-20), M12 30 minute (48-59-2401)
  • Note: Product may vary by store
  • Click here for more information on Electronic Recycling Programs

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Price
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Name M12 12-Volt Lithium-Ion Cordless Hackzall Reciprocating Saw (Tool-Only) M12 12-Volt Lithium-Ion Cordless HACKZALL Reciprocating Saw Kit M12 FUEL 12-Volt Lithium-Ion Cordless HACKZALL Reciprocating Saw (Tool Only) M12 FUEL 12-Volt Lithium-Ion Cordless HACKZALL Reciprocating Saw Kit
Brand Milwaukee Milwaukee Milwaukee Milwaukee
Ratings (271) (164) (33) (45)
Cordless/ Corded Cordless Cordless Cordless Cordless
Power Tool Features No Additional Features Bag Included No Additional Features Bag Included
Voltage (volts) 12 12 12 12
Batteries Included No Yes No Yes
Number of Batteries Included 0 1 0.0 1
Reconditioned No No No No
Battery Power Type Lithium Ion Lithium Ion Lithium Ion Lithium Ion
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Customer Questions & Answers

What am I doing wrong?

I just bought this and plugged in the charger and placed the battery on top and no lights came on. Nothing happened. What am I doing wrong?
Asked by: chezron
Check to see if you have power at the plug.
Answered by: KOOSER
Date published: 2016-12-27

The ad states brushless fuel is this correct?

Asked by: Pcb
No. This listing is incorrect, model 2420-21 pictured is our brushed M12™ Hackzall Unit.
Answered by: MilwaukeeElectric
Date published: 2016-08-09

1 or 2 batteries?

Asked by: Anonymous
1 battery
Answered by: Dave
Date published: 2016-03-16

Does the recharger come with this item?

Asked by: Anonymous
Yes, it came with everything you need, to include the charger.
Answered by: David
Date published: 2015-09-17

Where are the release buttons for the battery?

Asked by: steveinct
You squeeze the sides of the battery, where it's sort of ribbed, as you're extracting it.
Answered by: Grogan14
Date published: 2016-03-16

How long is battery life?

We used this saw for cutting off queen palm tree fronds and seed pods today and had to stop to recharge the battery after cutting only five fronds and two pods. This was on the first charge out of the box and we had charged it overnight. It did not take long at all to cut through these - two or three minutes each - and it wasn't like it was nonstop cutting because of having to stop and attack from a different angle and having to move the ladder to different trees - so we were really surprised that it did not last longer. Does this sound like expected life to get out of this battery for this purpose (this would seem to be light usage compared to some applications) ? Does the battery take on more of a charge with subsequent charges ?
Asked by: flightfulbird
for some reason it does not run very long cutting lies: But if I remember I think you can buy longer lasting batteries for it: I love my tool for other items: It seems it takes a lot of battery for cutting limbs:
Answered by: eagle
Date published: 2016-06-15

on-line specs state .75" stroke on the 12V Hackzall , manual says 1/2", which is it?

Asked by: Anonymous
Specifications here currently show 1/2" blade stroke, which is correct.
Answered by: Grogan14
Date published: 2016-03-16

Will this accept standard Sawzall blades?

I have the standard Sawmill. Will this take the same blades?
Asked by: Joe
Yes. This Hackzall will accept any standard reciprocating saw blade.
Answered by: Grogan14
Date published: 2017-02-13
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Customer Reviews

M12 12-Volt Lithium-Ion Cordless HACKZALL Reciprocating Saw Kit is rated 4.3 out of 5 by 164.
Rated 5 out of 5 by from I bought the Hackzal after seeing a contractor use the tool at my home. It look interesting and ... I bought the Hackzal after seeing a contractor use the tool at my home. It look interesting and I had intended to use it for small jobs such as cutting PVC or other small projects. I had the tool less that a week and was using it to cut roots at tubing for a sump pump system. I believe the tool is a valuable part of a homeowners cordless tools and would strongly recommend buying the tool for the home.
Date published: 2016-10-26
Rated 3 out of 5 by from Good but not perfect Love this tool for its size and convenience... very light weight and easy to use. But, my little wonder seized up after a recent plumbing job likely from a few drips of water running down the blade into the internal parts. Keep it dry and you'll live it!
Date published: 2016-11-01
Rated 3 out of 5 by from Ups And Downs As a finish carpenter/ and framer for a city contractor, i believe this saw should be used for only convenience then anything, i would not recommend for everyday use but only when needed. For example , i was hanging gutters and needed to cut off some length for end caps, with the torch multimaterial blade it was able to cut the metal in 5 seconds with a full battery charge, i use it about 10 times or less out of the month, battery dies really quick if you are cutting into hard lumber for extended times
Date published: 2016-09-23
Rated 4 out of 5 by from Compact Hackzall This is my fifth sawzall-type reciprocatig saw. The small size means you can carry it in your tool bucket or tool bag so you're more likely to have it with you. I installed some floor ducts yesterday and it did the job OK, but my arms really got a workout from this light-weight tool vibrating a lot. I went through three batteries carving out two duct holes in 3/4" plywood. When I switched over to a heavy full size 18v Hitachi sawzall, the shear mass of the bigger tool was much more comfortable and smoother to operate and control. Last month I was carving notches in logs with my corded full-size Milwaukee sawzall all day long. No problem. I still like the small Hackzall for it's convenience and portability but be aware that it doesn't replace a full size reciprocating saw. It's also convenient for finishing inside corner circular saw cuts. It definitely has its uses.
Date published: 2016-10-09
Rated 2 out of 5 by from Easy, compact but not the least bit powerful, returned for an 18v sawzall. Much much more power! Easy, compact but not the least bit powerful, returned for an 18v sawzall. Much much more power!
Date published: 2016-12-17
Rated 4 out of 5 by from So far ok for small general use, the extra batteries are need as they drain quickly So far ok for small general use, the extra batteries are need as they drain quickly
Date published: 2016-11-04
Rated 5 out of 5 by from Awesome tool! It's perfect for small jobs. Charges fast and last a good while
Date published: 2016-11-01
Rated 5 out of 5 by from If you want a tough tool with GREAT battery life, any of the Milwaukee battery tools will get the... If you want a tough tool with GREAT battery life, any of the Milwaukee battery tools will get the job done! I have 41 mechanics working on Diesel Trucks (class 8) and these tools are as tough and the MACK trucks we sell and service! ALL 41 mechanics have a battery tool from Milwaukee most of them are m-12 or m-18. Well worth the money simply due to battery life, no swapping these batteries all day they can handle it working on the roughest equipment in the world, they can handle yours too! Great job guys!
Date published: 2016-12-27
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