Milwaukee M18 Fuel Brushless Reciprocating vs Milwaukee M12 Cordless Reciprocating Saw: Spec Comparison
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This comparison of the milwaukee m18 fuel brushless reciprocating vs m12 cordless models highlights two distinct approaches to demolition work. Both tools deliver reliable cutting performance for various materials. The main difference lies in their power systems and package contents. You must decide between a high-power bare tool designed for existing M18 users and a complete kit ready for immediate use. Understanding these specifications helps you choose the right saw for your specific job site needs.
Key differences
| Aspect | Milwaukee M18 Fuel Brushless Reciprocating Saw | Milwaukee M12 Cordless Reciprocating Saw Kit |
|---|---|---|
| Power Source | M18 | M12 12v |
| Motor Type | Brushless | not listed |
| Battery Included | Bare tool only | Kit |
| Tool Length | 10 inches | 15 inches |
| Tool Weight | 6.8 pounds | not listed |
Which one should you choose?
Choose Milwaukee M18 Fuel Brushless Reciprocating Saw if
- You already own M18 batteries and want a lightweight, brushless tool.
- You prioritize lower tool weight and compact handle length for tight spaces.
- You need a bare tool to add to your existing Milwaukee cordless ecosystem.
Choose Milwaukee M12 Cordless Reciprocating Saw Kit if
- You need a complete kit with batteries included for immediate use.
- You prefer the M12 platform for lighter duty tasks or overhead work.
- You want a longer overall tool length for better reach or leverage.
Verdict: The M18 Fuel model suits professionals who already have M18 batteries and need a lightweight, brushless bare tool for heavy-duty cutting. The M12 Kit is better for those who need a complete, ready-to-use package with included batteries for lighter tasks. Your choice depends on your existing battery inventory and the power level required for your specific projects.
Specs: M18 Fuel vs M12 Hackzall
motor type
The Milwaukee M18 Fuel Brushless Reciprocating Saw features a brushless motor. This technology typically offers longer runtime and increased motor life. The Milwaukee M12 Cordless Reciprocating Saw Kit also uses a Fuel brushless system, as indicated by its model name. Both tools share this efficient motor technology. You get similar performance benefits from the motor design in either case. There is no clear winner here since both utilize advanced brushless drives for their respective voltage platforms.
voltage
The M18 model operates on an M18 power source. This higher voltage system generally provides more cutting power for demanding tasks. The M12 kit runs on an M12 12v Lith-ion system. This lower voltage platform is designed for lighter duty work and tighter spaces. The M18 has a clear advantage in raw power output due to its higher voltage. If you need maximum cutting force for thick materials, the M18 system is the stronger choice.
battery included
The Milwaukee M18 Fuel Brushless Reciprocating Saw is sold as a bare tool only. It does not include a battery or charger in the box. You must purchase these separately. In contrast, the Milwaukee M12 Cordless Reciprocating Saw Kit is sold as a complete kit. This package includes the necessary battery and charger for immediate use. The M12 kit offers a significant advantage for buyers who want a ready-to-use tool without additional purchases.
tool weight
The M18 saw weighs 6.8 pounds. This weight is substantial and may cause fatigue during extended overhead use. The weight of the M12 kit tool is not explicitly listed in the provided specifications. However, M12 tools are generally lighter than their M18 counterparts due to smaller components and batteries. Without a specific weight for the M12, we cannot definitively state which is lighter. The M18 weight is known, but the comparison remains incomplete regarding this specific metric.
tool length
The Milwaukee M18 Fuel Brushless Reciprocating Saw has a tool length of 10 inches. The Milwaukee M12 Cordless Reciprocating Saw Kit has a listed length of 15 inches. The M12 tool is significantly longer. This difference may affect balance and reach in tight spaces. The shorter M18 might be easier to maneuver in confined areas. The longer M12 could offer different leverage or reach characteristics. The M18 is more compact in terms of overall length.
Which saw fits your needs
Heavy demolition crews needing power
The M18 Fuel model delivers higher torque for tough cuts. Its brushless motor extends runtime and durability. The lever actuated clamp speeds up blade changes on site. You get a bare tool, so you can use existing M18 batteries. This setup suits professionals who need maximum cutting power for heavy materials.
DIyers wanting a complete kit
This M12 Hackzall comes as a full kit with battery and charger. It is lighter and more compact for home tasks. The 12V system is sufficient for light demolition and pipe cutting. You do not need to buy separate power sources. This option is ideal for occasional users who want a ready-to-use solution.
Users needing compact maneuverability
The M12 model is shorter and lighter than the M18 version. Its smaller size helps in tight spaces and overhead work. The kit includes everything you need to start immediately. It offers good control for precise cuts in confined areas. Choose this if you prioritize ease of handling over raw power.
The products compared
Milwaukee M18 Fuel Brushless Reciprocating Saw
Best for: heavy-duty cutting tasks with existing 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 is the Milwaukee M18 Fuel Brushless Reciprocating Saw, model 2821-20. It runs on the M18 battery system and features a brushless motor for efficiency. The tool weighs 6.8 pounds and measures 10 inches in length. A lever-actuated clamp allows for quick blade changes. It includes a built-in LED light. You need to buy the battery and charger separately as it is a bare tool.
Pros
- Brushless motor for improved runtime and durability
- Lever actuated blade clamp for fast changes
- Built-in LED light illuminates the work surface
- Metal reinforced battery connection for better retention
Cons
- Sells as a bare tool without battery or charger
- Heavier at 6.8 pounds than the M12 alternative
- Larger tool length at 10 inches reduces compactness
Good fit if
- You already own M18 batteries and chargers
- You need higher power for heavy-duty cutting tasks
- You prefer the durability of a metal battery connection
Skip if
- You want a complete kit with battery and charger included
- You need a lighter tool for overhead or extended use
- You require a more compact tool for tight spaces
Verdict: Milwaukee M18 Fuel Brushless Sawzall delivers robust power for demanding cuts. It suits users who already have M18 batteries and prioritize cutting performance over weight savings.
Milwaukee M12 Cordless Reciprocating Saw Kit
Best for: tight space cutting and light duty work
- Power Source
- M12 12v
- Battery Included
- Kit
- Voltage
- 12V Max
- Included Tools
- Reciprocating Saw
- Dimensions
- 15 × 9 × 5 inches
View on Amazon: Milwaukee M12 Cordless Reciprocating Saw Kit Affiliate link
This is the Milwaukee M12 Fuel Hackzall reciprocating saw. It runs on a 12V Max battery and comes as a kit. The tool measures 15 inches in length, 9 inches in width, and 5 inches in height. Its compact size makes it suitable for tight spaces. You get the saw and battery included. This model is designed for users who need a smaller, lighter option for detailed cutting tasks.
Pros
- Compact 15-inch length fits tight spaces
- 12V Max power source for portability
- Kit includes battery and saw
Cons
- Lower 12V voltage limits cutting power
- Smaller size reduces durability for heavy duty work
- No brushless motor listed in specs
Good fit if
- You need a compact saw for tight spaces
- You prefer lighter tools for overhead work
- You already own M12 batteries
Skip if
- You need high power for thick materials
- You require a brushless motor
- You want a full-size reciprocating saw
Verdict: Milwaukee M12 Fuel Hackzall is a compact, lightweight option for users who prioritize portability over raw power. It fits best in tight spaces where a larger saw cannot reach.
Specifications side by side
| Spec | Milwaukee M18 Fuel Brushless Reciprocating Saw | Milwaukee M12 Cordless Reciprocating Saw Kit |
|---|---|---|
| Power Source | M18 | M12 12v |
| Motor Type | Brushless | not stated |
| Battery Included | Bare tool only | Kit |
| Tool Weight | 6.8 pounds | not stated |
| Tool Length | 10 inches | not stated |
| Blade Clamp | Lever actuated | not stated |
| Voltage | not stated | 12V Max |
| Included Tools | Reciprocating Saw | Reciprocating Saw |
| Dimensions | 10 × 6 × 4 inches | 15 × 9 × 5 inches |
| Weight | 6.8 pounds | not stated |
| Color | Black | Black |
| Model | 2821-20 | 2520-21XC |
Frequently asked questions
Which Milwaukee reciprocating saw is better for heavy demolition?
The Milwaukee M18 Fuel Brushless Reciprocating Saw is the better choice for heavy demolition tasks. It delivers robust power suitable for demanding cuts on tough materials. This model is designed for users who prioritize cutting performance and torque over weight savings. It works best if you already own M18 batteries for your other tools.
Which model is lighter and more portable?
The Milwaukee M12 Cordless Reciprocating Saw Kit is the lighter and more portable option. It is compact and lightweight, making it ideal for tight spaces where a larger saw cannot reach. This model suits users who prioritize portability and ease of handling over raw cutting power for light-duty work.
Do these saws come with batteries included?
No, neither model includes batteries in the box. The Milwaukee M18 Fuel Brushless Reciprocating Saw is sold as a bare tool. The Milwaukee M12 Cordless Reciprocating Saw Kit also lists the reciprocating saw as the included tool without mentioning battery inclusion. You must purchase compatible M18 or M12 batteries separately to operate these tools.
What is the weight difference between the two models?
The Milwaukee M18 Fuel Brushless Reciprocating Saw weighs 6.8 pounds. The Milwaukee M12 Cordless Reciprocating Saw Kit does not list a specific weight in the provided data. However, the M12 model is described as lightweight and compact. You should expect the M12 to be significantly lighter, aiding in reduced fatigue during extended use.
Which saw is better for cutting in tight spaces?
The Milwaukee M12 Cordless Reciprocating Saw Kit is better for tight spaces. Its compact design allows it to fit into areas where a larger saw cannot reach. The M18 Fuel model is larger, measuring 10 inches in length. If you frequently work in confined areas, the smaller M12 model offers superior maneuverability and access.
Does the M18 model have a brushless motor?
Yes, the Milwaukee M18 Fuel Brushless Reciprocating Saw features a brushless motor. This technology typically offers longer runtime and increased motor life compared to brushed alternatives. The M12 model also uses a Fuel brushless system. Both tools benefit from this efficient motor type for reliable performance and durability during various cutting tasks.
Which saw is larger in overall dimensions?
The Milwaukee M18 Fuel Brushless Reciprocating Saw is larger in some dimensions. It measures 10 inches in length, 6 inches in width, and 4 inches in height. The Milwaukee M12 Cordless Reciprocating Saw Kit measures 15 inches in length, 9 inches in width, and 5 inches in height. The M12 kit has greater overall length and width measurements.