Milwaukee M12 HACKZALL Cordles...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$167.79
Milwaukee M12 HACKZALL Cordless Reciprocating Saw

Milwaukee M12 HACKZALL Cordless Reciprocating Saw

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Model: 2420-20

In Stock (leaves warehouse same day if ordered before 3pm ET)

$167.79
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Milwaukee M12 HACKZALL 2420-20 Reciprocating Saw

The Milwaukee M12 HACKZALL 2420-20 Reciprocating Saw is a compact, one-handed cutting tool built on Milwaukee's M12 cordless platform. Designed for tight spaces, overhead work, and one-handed maneuverability, this HACKZALL-series saw delivers dedicated cutting performance for professional tradespeople and serious DIYers. Its compact HACKZALL body is purpose-built to reach into spots where a full-size reciprocating saw simply won't fit, making it a practical grab-and-go tool for fast cutting tasks around the jobsite. As part of the broader M12 cordless system, the 2420-20 is engineered to work alongside other Milwaukee M12 tools and batteries, giving crews a portable, ready-to-grab cutting solution for the jobsite, service van, or shop.

Key Features

  • HACKZALL Design: Purpose-built as a compact, one-handed reciprocating saw for cutting in tight quarters and awkward positions where a full-size reciprocating saw won't fit.
  • M12 Cordless Platform: Runs on the Milwaukee M12 system, offering cord-free portability and compatibility with the wider M12 tool lineup.
  • One-Handed Operation: Lightweight, compact form factor is engineered for single-hand control, freeing the other hand to steady material or hold a ladder.
  • Compact Footprint: The HACKZALL's short, streamlined profile is designed to reach into confined cavities, joist bays, and other hard-to-access areas a full-size reciprocating saw cannot navigate.
  • Grab-and-Go Convenience: As a member of the Milwaukee M12 line, the 2420-20 is built for quick, on-demand cutting tasks without the bulk of a corded or full-size cordless reciprocating saw.
  • Milwaukee 2420-20 Model: Identified by model number 2420-20 within the Milwaukee M12 HACKZALL reciprocating saw family.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Remodeling and Renovation Cutting Tasks
  • Plumbing, Electrical, and Mechanical Rough-In Work
  • Demolition and Tear-Out Projects
  • One-Handed Overhead and Tight-Space Cutting
  • General Maintenance and Repair Applications

Why Milwaukee?

Milwaukee builds the M12 HACKZALL 2420-20 as part of its professional-grade M12 cordless system, giving tradespeople a dependable, purpose-built saw for the tight spots a full-size reciprocating saw can't reach. Backed by the reliability expected from the Milwaukee M12 lineup, the 2420-20 is a practical addition to any cordless tool kit for contractors, electricians, plumbers, HVAC technicians, and maintenance professionals who need fast, one-handed cutting power on demand. Whether it's a quick repair or a full remodel, the M12 HACKZALL 2420-20 is designed to be the compact cutting tool crews reach for first.

Manufacturer Resources

Product Specs

Product Type:
Saw
Series:
M12 HACKZALL
Product Subgroup:
Power Tools
Department:
Electrical
list_batch:
MWK-20260918
Product Group:
Power Tools & Accessories

Milwaukee 2420-20 – Frequently Asked Questions

1) What is the difference between Milwaukee 2420-20, 2420-21, and 2420-22?
All three are the same M12 HACKZALL one-handed reciprocating saw, differing only in what comes in the box. 2420-20 is the bare tool, 2420-21 is the kit, and 2420-22 is the kit with two batteries. If your crew already runs M12 batteries and chargers, the bare tool 2420-20 is the one to order; if this is your first M12 tool, go with a kit so you get power with it.
2) Will the Milwaukee M12 HACKZALL run on batteries from my other M12 tools?
Yes. The 2420 HACKZALL is built on Milwaukee's M12 cordless platform and runs on the same M12 battery packs used across the wider M12 tool lineup, so a shop already standardized on M12 can buy the bare tool and share packs and chargers.
3) Should I buy a HACKZALL or a full-size reciprocating saw for demolition work?
The HACKZALL is a compact, one-handed saw meant for tight quarters, overhead cuts, joist bays, and confined cavities where a full-size recip saw physically will not fit. For sustained tear-out of heavy framing, a full-size reciprocating saw is the better tool. Most crews carry the HACKZALL as the grab-and-go saw for fast cuts and service work, not as the primary demolition saw.
4) I'm ordering the Milwaukee 2420-20 bare tool. Do I need anything else?
The 2420-20 is a bare tool, so it ships without a battery or charger. You will need at least one M12 battery pack and an M12 charger to run it, plus reciprocating saw blades for the material you are cutting. If you do not already own M12 packs, order 2420-21 (kit) or 2420-22 (kit with two batteries) instead.
5) Can you really operate the M12 HACKZALL with one hand on a ladder?
That is what it is designed for. The 2420 HACKZALL is a lightweight, compact body engineered for single-hand control, leaving your other hand free to steady the material or hold the ladder. That makes it practical for overhead electrical, plumbing, and mechanical work where two-handed tool control is not an option.
6) Is the M12 HACKZALL 2420 suitable for plumbing and electrical rough-in?
Yes, rough-in cutting for plumbing, electrical, and mechanical trades is one of its listed applications, along with remodel and renovation cuts, demolition and tear-out, and general maintenance and repair. It is the saw electricians and plumbers reach for when the cut is in a wall cavity or stud bay.
7) Which Milwaukee HACKZALL model number should I give my supplier for the two-battery kit?
Ask for Milwaukee 2420-22, the M12 HACKZALL kit with two batteries. The single-battery kit is 2420-21 and the bare tool is 2420-20. All three are the same M12 HACKZALL reciprocating saw.
How fast can I get the Milwaukee 2420-20 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Milwaukee 2420-20 come with a warranty?
Absolutely. The Milwaukee 2420-20 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Milwaukee 2420-20?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Milwaukee 2420-20 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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