The Hart brand and other brand saw blades with work with the reciprocating saw kit, as it has a universal 1/2" shank.
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Milwaukee M12 12 Volt HACKZALL Cordless Reciprocating Saw Kit, Model# 2420-21

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Estimated to ship 06/29/26Store Pickup:
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- Only 11in. and 2.6 lbs. for cutting in tight spaces
- 12V Lithium-Ion 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
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Description
Key Specs
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Product Summary
What's Included
- (1) Milwaukee M12 12 Volt Hackzall Cordless Sawzall Reciprocating Saw Model# 2420-21, Model# 2420-21, (1) 12V Lithium-Iron battery pack, (1) 30-minute charger, (2) Hackzall blades, (1) Contractor's bag
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Over 80 Tools, One Battery
- More than 80 unique solutions make the M12™ family the largest sub-compact cordless system on the market.
- M12™ defines cordless tool innovation, transforming inefficient manual tools into advanced workhorses powered by MILWAUKEE's ® REDLITHIUM™ battery technology.
The M12™ System – Built For The Jobsite
- The MILWAUKEE ® M12™ cordless system delivers industry leading durability and power in a size that outperforms the competition in the tightest places.
- REDLITHIUM™ batteries last longer, think faster, and work harder than all other professional LITHIUM-ION batteries. Built to withstand the harshest environments, REDLITHIUM™ batteries deliver more work over the course of your day and the life of the battery.
- Combining advanced hardware and software, REDLINK™ Intelligence enables advanced communication between your batteries and tools, allowing for unmatched levels of performance, protection, and productivity.
Shop With Confidence
- MILWAUKEE ® provides the best in heavy-duty electric power tools and accessories.
- Your purchase is protected with a 5-year limited warranty on cordless tools, a 2-year limited warranty on compact batteries, and a 3-year limited warranty on XC batteries.
- Shop in complete confidence, knowing that Northern Tool + Equipment protects your investment and is ready to provide you with the assistance and helpful resources you need.
Features + Benefits
- Only 11in. and 2.6 lbs. for cutting in tight spaces
- 12V Lithium-Ion 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
- Built-in LED light illuminates work surface
Key Specs
| Attribute | Specification |
|---|---|
item# | 14049 |
Brand | Milwaukee |
Manufacturer's Warranty | 5 year limited warranty |
Ship Weight | 4.74 LB |
Volts | 12 |
Strokes Per Minute | 3,000 |
Battery Type | Lithium-ion |
| Attribute | Specification |
|---|---|
Stroke Length | 0.5 in |
Battery Included | Yes |
Charger Included | Yes |
Tool Weight | 2.6 lb |
Storage Type | Bag |
Product Weight | lb |
Dimensions L x W x H (in.) | 4.75 x 7.0 x 15.375 in |
Reviews
Questions & Answers
Questions
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· 5 months ago
Will Hart brand blades fit this zaw
1 answer-
ProductExpert6· 5 months ago
Helpful?
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· 5 years ago
To remove the battery your instructions say to push the release button. Where is the release button?
1 answer-
ProductExpert6· 5 years ago
You would just press in on both sides of the battery where the ridges are and this will release the battery so you can pull it out.
Helpful?
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· 9 years ago
what is the difference between the 2420-21 and the 2420-22
1 answer-
ProductExpert40· 9 years ago
The only difference in the two packages is the model 2420-21 comes with only one battery pack while the model 2420-22 comes with 2 battery packs.
Helpful?
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Warranty
Manufacturer's Warranty
5 year limited warranty
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Specifications
12
20
120
3,000
3,000
2,800
Lithium-ion
Lithium-ion
-
0.5 in
1.12 in
1.25 in
Yes
No
No
Yes
No
No
2.6 lb
6 lb
9.8 lb
Bag
None
Plastic Case
lb
-
-
4.75 x 7.0 x 15.375 in
-
-
-
Yes
-
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Milwaukee M12 12 Volt HACKZALL Cordless Reciprocating Saw Kit, Model# 2420-21
Item # 14049
Order today to get this price.





