Looking Beyond the Milwaukee 2420-20 M12 12-Volt Lithium-Ion? 6 Alternatives Worth a Look
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The Milwaukee 2420-20 M12 12-Volt Lithium-Ion is a compact reciprocating saw designed for light demolition and tight spaces. It weighs 2.14 pounds and measures 10 inches in length, making it highly portable. The tool accepts both HACKZALL and SAWZALL style blades, offering versatility for different cutting tasks. A variable-speed trigger allows you to control the cut speed, while a battery fuel gauge displays remaining run time. This makes it a practical choice for users who already own M12 batteries and need a lightweight option for confined areas.
However, you might look for Milwaukee 2420 20 m12 12 volt lithium ion alternatives if you require more power or a different voltage platform. Some users prefer the higher voltage of 20V systems for faster cutting speeds or heavier duty work. Others may want brushless motors for improved efficiency or specific ergonomic features. The alternatives listed here were chosen because their specifications overlap with the original, such as being cordless reciprocating saws. This list compares tools based on weight, size, and motor type to help you find the right fit for your specific needs.
Our top pick: Milwaukee M12 12V Hackzall Tool.
Alternatives to the M12 Hackzall
DEWALT 20V Brushless Reciprocating Saw
The DEWALT 20V Brushless Reciprocating Saw offers higher voltage than the Milwaukee 12V model. You gain cutting power and efficiency from the brushless motor. The trade-off is that you need existing 20V MAX batteries instead of M12 packs. This tool is heavier and less compact than the 2.14-pound Hackzall. It suits users who prioritize raw performance over extreme portability. If you work in confined spaces but need more torque, this is a strong alternative. It fits professionals who already own the DEWALT battery ecosystem. You get a compact tool that still delivers significant power for rapid cuts.
DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw
The DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw is significantly lighter at just 1 pound. It measures 3.58 inches in all dimensions, making it much smaller than the Milwaukee 10-inch length. You trade the Milwaukee’s 12V power for a highly maneuverable 20V tool. This design allows for true one-handed use in tight spaces. It is ideal if you need to reach into very confined areas. You still need DEWALT 20V MAX batteries, so it does not share power sources with the Milwaukee M12. The compact size makes it easier to handle in awkward positions. It is a better choice for precision work in cramped environments.
DEWALT 20V MAX XR Compact Reciprocating Saw
The DEWALT 20V MAX XR Compact Reciprocating Saw weighs 5.4 pounds, which is much heavier than the Milwaukee 2.14-pound tool. It measures 14.5 inches in length, offering more reach but less maneuverability. The brushless motor provides higher efficiency and durability. You gain robust power for tougher cutting tasks. This tool includes a work light for better visibility in dark spaces. It suits professionals who need a compact but powerful option for tight spaces. You must use 20V MAX XR batteries, so it does not fit the M12 ecosystem. It is a better choice if you prioritize power and durability over minimal weight.
DEWALT 20V MAX Compact Reciprocating Saw
The DEWALT 20V MAX Compact Reciprocating Saw weighs 4.96 pounds and measures 5.81 inches in length. It is heavier than the Milwaukee Hackzall but offers variable speed control for detailed work. The tool includes a work light for improved visibility in confined spaces. You gain flush cutting capabilities that the Milwaukee model may not emphasize. It suits users who need precision cutting in tight areas. You must use 20V MAX batteries, so it does not share power sources with the M12 system. The compact design allows for better access in cramped spaces. It is a solid choice for those who value LED visibility and controlled cutting speeds.
Milwaukee M18 Fuel Brushless Reciprocating Saw
The Milwaukee M18 Fuel Brushless Reciprocating Saw weighs 6.8 pounds, significantly more than the 2.14-pound M12 Hackzall. It measures 10 inches in length, matching the Milwaukee model’s footprint but offering much more power. The brushless motor provides higher efficiency and durability for heavy-duty demolition. You gain robust performance for tough cutting tasks. It fits users already invested in the M18 battery ecosystem. The tool is ideal for professionals who prioritize power over portability. You sacrifice the lightweight, compact nature of the M12 model. It is a better choice for heavy demolition work where weight is less of a concern.
DEWALT 20V MAX XR Brushless Reciprocating Saw
The DEWALT 20V MAX XR Brushless Reciprocating Saw weighs 4.5 pounds and measures 19.3 inches in length. It is longer and heavier than the Milwaukee 10-inch Hackzall. The brushless motor offers fast cutting speeds and robust power. You gain efficiency and durability for heavy-duty demolition. The tool includes vibration reduction for better comfort during extended use. It suits professionals who need a durable tool for tough cutting tasks. You must use 20V MAX batteries, so it does not share power sources with the M12 system. It is a better choice for users who prioritize power and reduced vibration over compact size.
Quick picks
Our 7 picks
Milwaukee M12 12V Hackzall Tool
Best for: light demolition and tight spaces
- Power Source
- 12-Volt
- Tool Weight
- 2.14 pounds
- Tool Length
- 10 inches
- Variable Speed Trigger
- Variable-speed trigger
- Voltage
- 12V Max
- Included Tools
- Reciprocating Saw
View on Amazon: Milwaukee M12 12V Hackzall Tool Affiliate link
This Milwaukee M12 tool is a 12-volt cordless reciprocating saw designed for compact tasks. It weighs 2.14 pounds and measures 10 inches long, making it easy to handle in tight spaces. The variable-speed trigger gives you control over the cut. A battery fuel gauge shows remaining run time. It accepts both HACKZALL and SAWZALL blades. This kit suits users who need a lightweight, portable saw for light demolition or trimming.
Pros
- 12-volt power source for portability
- Weighs only 2.14 pounds
- Variable-speed trigger for control
- Battery fuel gauge display
- Accepts HACKZALL and SAWZALL blades
Cons
- 12-volt system has less power than 18V or 20V competitors
- Sold as a bare tool without a battery
- Smaller capacity than full-size reciprocating saws
Good fit if
- You need a lightweight saw for tight spaces
- You already own M12 batteries
- You perform light demolition or trimming tasks
Skip if
- You require high power for heavy-duty cutting
- You do not own a compatible 12-volt battery
- You need a full-size saw for large projects
Verdict: Milwaukee M12 12V Cordless Reciprocating Saw is a compact, lightweight option for users who prioritize portability and already have M12 batteries. It fits those doing light work in tight spaces rather than heavy demolition.
DEWALT 20V Brushless Reciprocating Saw
Best for: Users with existing 20V MAX batteries needing compact power
- Power Source
- 20V MAX
- Stroke Length
- 1-1/8 in.
- Motor Type
- Brushless
- Battery Included
- Tool Only
- Blade Clamp
- Keyless, twist-style
- Variable Speed Trigger
- 2-finger variable trigger
View on Amazon: DEWALT 20V Brushless Reciprocating Saw Affiliate link
This DEWALT tool features a brushless motor for optimized cutting power and efficiency. It uses a 20V MAX power source and has a 1-1/8 inch stroke length for fast cuts. The compact size allows for a high range of motion in tight spaces. You get a 2-finger variable trigger for speed control and comfort. It includes a twist-style keyless blade clamp for quick changes. This is a bare tool, meaning you supply your own battery.
Pros
- Brushless motor for efficiency
- 20V MAX power source
- 1-1/8 inch stroke length
- 2-finger variable trigger
- Keyless blade clamp
Cons
- Sold as a bare tool without a battery
- No variable speed dial, only trigger control
- Single stroke length setting
Good fit if
- You already own DEWALT 20V MAX batteries
- You need a compact saw for tight spaces
- You prefer quick blade changes via a twist clamp
Skip if
- You want a complete kit with a battery and charger included
- You require a reciprocating saw with a digital display
- You need a tool with Bluetooth connectivity for app control
Verdict: DEWALT 20V MAX XR Brushless Reciprocating Saw fits professionals who already have the battery platform and need a compact, efficient tool for rapid cuts in confined areas.
DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw
Best for: tight spaces and one-handed use
- Power Source
- 20V MAX
- Motor Type
- Brushless
- Battery Included
- Tool Only
- Tool Length
- 12.5-inch front to back
- Blade Clamp
- Tool-free blade release
- Variable Speed Trigger
- Variable-speed trigger
View on Amazon: DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw Affiliate link
This DEWALT DCS369B is a one-handed reciprocating saw designed for tight spaces. It measures 12.5 inches from front to back and weighs just 1 pound. The brushless motor offers improved performance and efficiency. You get a variable-speed trigger for better control and an LED light for dark workspaces. It is a bare tool, so you need a compatible 20V MAX battery.
Pros
- Compact 12.5-inch length for tight spaces
- Lightweight 1-pound build for one-handed use
- Brushless motor for increased performance
- LED illuminates dark work areas
- Tool-free blade release for quick changes
Cons
- Sold as a bare tool without battery
- Single-speed pivot shoe limits angle adjustment
- No keyless chuck for faster bit swaps
Good fit if
- You need a compact saw for tight spaces
- You want a lightweight tool for overhead work
- You already own DEWALT 20V MAX batteries
Skip if
- You need a tool with a built-in battery
- You require a multi-speed pivot shoe
- You prefer a traditional two-handed grip
Verdict: DEWALT 20V MAX One-Handed Reciprocating Saw fits users who need a compact, lightweight tool for tight spaces. It is ideal for those who already have DEWALT 20V MAX batteries and value one-handed maneuverability.
DEWALT 20V MAX XR Compact Reciprocating Saw
Best for: Compact cutting in tight spaces
- Power Source
- 20V MAX XR
- Stroke Length
- 1-1/8"
- Strokes Per Minute
- up to 2,900 SPM
- Motor Type
- Brushless
- Battery Included
- Tool Only
- Tool Weight
- 5 lbs. (tool only)
View on Amazon: DEWALT 20V MAX XR Compact Reciprocating Saw Affiliate link
This DEWALT reciprocating saw features a brushless motor and 20V MAX XR power source. It offers up to 2,900 SPM and a 1-1/8 inch stroke length. The tool weighs 5 lbs and measures 14.5 inches long. A keyless 4-position blade clamp allows quick changes. An LED light aids visibility. This compact design fits tight spaces well.
Pros
- Brushless motor provides up to 2.5x more runtime
- Variable speed trigger reaches up to 2,900 SPM
- Compact 14.5-inch length fits between studs
- Keyless 4-position blade clamp for quick changes
Cons
- Tool only; battery not included
- Heavier than one-handed compact alternatives
- Single LED light only
Good fit if
- You need a compact saw for tight spaces
- You already own 20V MAX XR batteries
- You want a brushless motor for longer runtime
Skip if
- You require a complete kit with battery and charger
- You need a one-handed design for overhead work
- You prefer 12-volt systems for lighter duty
Verdict: DEWALT DCS367B 20V MAX XR Brushless suits pros who need a compact, high-speed saw for tight spaces. It fits users who already have 20V MAX XR batteries and want brushless efficiency.
DEWALT 20V MAX Compact Reciprocating Saw
Best for: confined spaces and precision cutting
- Power Source
- 20V MAX
- Stroke Length
- 1-1/8 in.
- Strokes Per Minute
- 0-2,900 SPM
- Battery Included
- Bare tool only
- Tool Weight
- 4.96 lbs.
- Tool Length
- 14 in.
View on Amazon: DEWALT 20V MAX Compact Reciprocating Saw Affiliate link
This DEWALT 20V MAX cordless reciprocating saw features a compact 14-inch length designed for confined spaces. It offers a variable speed trigger ranging from 0 to 2,900 SPM for precision control. The 1-1/8-inch stroke length provides fast cutting, while the 4-position blade clamp allows for flush cuts. An integrated LED light illuminates dark work areas, and a pivoting shoe adds versatility during use.
Pros
- Compact 14-inch total length fits between studs
- Variable-speed trigger offers 0-2,900 SPM control
- 4-position tool-free blade clamp enables flush cutting
- Bright LED illuminates dark work areas
- Pivoting shoe provides cutting versatility
Cons
- Heavier at 4.96 lbs compared to lighter one-handed models
- Bare tool only, battery not included
- Fixed 1-1/8-inch stroke length limits customization
Good fit if
- You need a compact saw for tight spaces
- You require variable speed control for precision
- You work in dark areas needing LED light
Skip if
- You prefer a one-handed design
- You want a brushless motor
- You need a battery included
Verdict: DEWALT 20V MAX Compact Reciprocating Saw suits users who prioritize compact size and variable speed control for detailed work in confined spaces. It is a solid choice for those who value LED visibility and flush cutting capabilities.
Milwaukee M18 Fuel Brushless Reciprocating Saw
Best for: Heavy-duty demolition with M18 batteries
- Power Source
- M18
- Motor Type
- Brushless
- Battery Included
- Bare tool only
- Tool Weight
- 6.8 pounds
- Tool Length
- 10 inches
- Blade Clamp
- Lever actuated
View on Amazon: Milwaukee M18 Fuel Brushless Reciprocating Saw Affiliate link
This bare-tool reciprocating saw uses the M18 platform. It features a brushless motor and weighs 6.8 pounds. The tool is 10 inches long with a lever-actuated blade clamp for quick changes. A built-in LED light helps you see the cut line. It suits users who already own M18 batteries and need a durable, heavy-duty saw for demolition work.
Pros
- Brushless motor for efficiency
- Lever-actuated blade clamp
- Built-in LED work light
- Metal-reinforced battery connection
Cons
- Heavy at 6.8 pounds
- Bare tool only
- Larger than compact 12-volt options
Good fit if
- You already use M18 batteries
- You need a durable metal connection
- You prefer lever blade changes
Skip if
- You want a lightweight one-handed tool
- You need a battery and charger included
- You prefer compact 12-volt power
Verdict: Milwaukee M18 Fuel Brushless Sawzall fits professionals who prioritize power and durability over weight. It is ideal for users already invested in the M18 ecosystem who need a robust saw for tough demolition tasks.
DEWALT 20V MAX XR Brushless Reciprocating Saw
Best for: Heavy-duty demolition and high-efficiency cutting
- Power Source
- 20V MAX* Cordless
- Stroke Length
- 1-1/8 in.
- Strokes Per Minute
- 3,000 max SPM
- Motor Type
- Brushless
- Battery Included
- Tool only
- Tool Weight
- 4.5 pounds
View on Amazon: DEWALT 20V MAX XR Brushless Reciprocating Saw Affiliate link
The DEWALT DCS384B is a 20V MAX XR brushless reciprocating saw designed for heavy-duty cutting. It features a 1-1/8 inch stroke length and a variable speed trigger reaching 3,000 max SPM. The tool includes a counterbalance mechanism to limit vibration and a pivoting shoe for better control. It is sold as a tool only, meaning you need a compatible battery to operate it.
Pros
- Brushless motor delivers more power for tough demands
- Keyless lever-action blade clamp for quick changes
- Counterbalance mechanism limits vibration during use
- Onboard LED brightens dark work areas
Cons
- Sold as a bare tool without a battery included
- Heavier at 4.5 pounds compared to some compact alternatives
- Requires separate purchase of TOOL Connect chip for asset management
Good fit if
- You need a high-efficiency saw for tough jobs
- You already own 20V MAX batteries
- You prefer vibration reduction for extended use
Skip if
- You want a complete kit with battery and charger
- You need a lighter tool for overhead work
- You require onboard asset management without extra parts
Verdict: The DEWALT DCS384B 20V MAX XR Brushless Recip Saw offers fast cutting speeds and robust power for professionals. It fits users who already have the battery ecosystem and need a durable, vibration-reduced tool for heavy-duty demolition.
Specifications side by side
| Spec | Milwaukee M12 12V Hackzall Tool | DEWALT 20V Brushless Reciprocating Saw | DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw | DEWALT 20V MAX XR Compact Reciprocating Saw | DEWALT 20V MAX Compact Reciprocating Saw | Milwaukee M18 Fuel Brushless Reciprocating Saw | DEWALT 20V MAX XR Brushless Reciprocating Saw |
|---|---|---|---|---|---|---|---|
| Power Source | 12-Volt | 20V MAX | 20V MAX | 20V MAX XR | 20V MAX | M18 | 20V MAX* Cordless |
| Stroke Length | not stated | 1-1/8 in. | not stated | 1-1/8" | 1-1/8 in. | not stated | 1-1/8 in. |
| Strokes Per Minute | not stated | not stated | not stated | up to 2,900 SPM | 0-2,900 SPM | not stated | 3,000 max SPM |
| Motor Type | not stated | Brushless | Brushless | Brushless | not stated | Brushless | Brushless |
| Battery Included | not stated | Tool Only | Tool Only | Tool Only | Bare tool only | Bare tool only | Tool only |
| Tool Weight | 2.14 pounds | not stated | not stated | 5 lbs. (tool only) | 4.96 lbs. | 6.8 pounds | 4.5 pounds |
| Tool Length | 10 inches | not stated | 12.5-inch front to back | 14.5" | 14 in. | 10 inches | 19.3 inches |
| Blade Clamp | not stated | Keyless, twist-style | Tool-free blade release | Keyless 4-position blade clamp | 4-position, tool-free | Lever actuated | Keyless lever-action blade clamp |
| Variable Speed Trigger | Variable-speed trigger | 2-finger variable trigger | Variable-speed trigger | Variable speed trigger | Variable-speed trigger | not stated | Variable speed trigger |
| Voltage | 12V Max | 20V | 20V | 20V | 20V | not stated | 20V |
| Included Tools | Reciprocating Saw | Reciprocating Saw | Reciprocating Saw | Work Light, Reciprocating Saw | Work Light, Reciprocating Saw | Reciprocating Saw | Reciprocating Saw |
| Dimensions | 10 × 6 × 2.25 inches | not stated | 3.58 × 3.58 × 3.58 inches | 14.5 × 6 × 7 inches | 5.81 × 1.38 × 2.95 inches | 10 × 6 × 4 inches | 19.3 × 4.19 × 7.38 inches |
| Weight | 2.14 pounds | not stated | 1 pounds | 5.4 pounds | 4.96 pounds | 6.8 pounds | 4.5 pounds |
| Color | Red | Black | Multi | Black | Multi | Black | Black, Yellow |
| Model | MIL2420-20 | not stated | DCS369B | DCS367B | DCS387B | 2821-20 | DCS384B |
| Size | not stated | not stated | One Size | One Size | One Size | not stated | STANDARD |
Readers of this guide also look at milwaukee m18 fuel 18 volt lithium ion alternatives.
Frequently asked questions
What is the lightest reciprocating saw in this list?
The DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw is the lightest option at 1 pound. Its compact dimensions of 3.58 inches in length, width, and height make it ideal for tight spaces. You can operate it with one hand, which improves maneuverability in confined areas.
Which tool offers the highest voltage for cutting power?
Most tools in this list use 20V platforms, providing more power than the 12V Milwaukee 2420-20. The DEWALT 20V MAX XR Brushless Reciprocating Saw and the Milwaukee M18 Fuel Brushless Reciprocating Saw use 20V or 18V systems. These higher voltages support faster cutting speeds for tougher materials.
Are brushless motors better for this type of tool?
Brushless motors generally offer higher efficiency and durability than brushed alternatives. Several options here, like the DEWALT 20V Brushless Reciprocating Saw and the Milwaukee M18 Fuel, feature brushless technology. This design reduces maintenance needs and extends runtime when you are using compatible battery packs.
Which saw is best for heavy-duty demolition tasks?
The Milwaukee M18 Fuel Brushless Reciprocating Saw is built for heavy-duty demolition. It weighs 6.8 pounds and is designed for users who prioritize power and durability over weight. The Milwaukee M18 system provides robust performance for tough tearing-out jobs in construction or renovation settings.
Do these kits include batteries and chargers?
All listed tools are sold as bare tools without batteries or chargers included. You must already own compatible batteries from the respective brand ecosystems. For example, the Milwaukee M12 requires M12 batteries, while DEWALT models need 20V MAX or 20V MAX XR packs.
Which model includes a work light for visibility?
The DEWALT 20V MAX XR Compact Reciprocating Saw and the DEWALT 20V MAX Compact Reciprocating Saw both include a work light. These lights illuminate your cut line in dark or shadowed areas. This feature helps you maintain precision when working in confined or poorly lit spaces.
How does the DEWATOM ATOMIC compare in size to the Milwaukee 2420-20?
The DEWALT ATOMIC is significantly smaller than the Milwaukee 2420-20. The Milwaukee tool measures 10 inches in length, while the DEWALT ATOMIC is only 3.58 inches long. This extreme compactness allows the DEWALT model to fit into even tighter gaps where standard saws cannot reach.