6 Best Alternatives to the Milwaukee 2621-20 M18 18V Lithium (2026)
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The Milwaukee 2621-20 M18 18V Lithium reciprocating saw delivers 3,000 RPM strokes through a durable all-metal gearbox and a Quik Lok blade clamp. Its 7.4-pound weight and counterbalance mechanism help reduce vibration during heavy demolition. This bare tool relies on the M18 battery system for power. You might look for Milwaukee 2621 20 M18 18V Lithium alternatives if you prefer a different voltage platform or need a more compact design for tight spaces. Some users may also want a brushless motor for longer runtime or a lighter tool for overhead work.
The alternatives in this list were chosen because their specifications overlap with the original Milwaukee model. Each option shares key traits like cordless operation and reciprocating saw functionality. You will find options ranging from high-speed brushless models to ultra-compact one-handed tools. Some feature integrated work lights for low-visibility areas. Others prioritize lightweight handling for extended use. This guide compares their specs to help you find the right fit for your specific job requirements.
Our top pick: Milwaukee M18 Cordless Sawzall.
How the Alternatives Compare
RYOBI ONE+ HP 18V Brushless Reciprocating Saw
The RYOBI ONE+ HP model shares the 18V platform but uses a brushless motor for efficiency. It weighs 7.2 pounds, which is slightly lighter than the Milwaukee’s 7.4-pound frame. The RYOBI measures 19.2 inches long, making it comparable in length to the Milwaukee’s 15.1-inch body plus handle. You get a bare tool here, just like with the Milwaukee. The RYOBI prioritizes raw cutting speed over the Milwaukee’s all-metal gearbox durability. If you already own RYOBI ONE+ batteries, this is a strong alternative. It sacrifices the Quik Lok clamp and counterbalance mechanism for a simpler, high-speed design. Choose this if you value brushless efficiency and do not need the Milwaukee’s specific vibration control features.
Makita 18V LXT Compact Reciprocating Saw
The Makita XRJ01Z is a compact reciprocating saw that weighs only 2.69 pounds. This is significantly lighter than the Milwaukee’s 7.4-pound weight. It measures 17 inches in length and 4 inches in width, offering a smaller footprint than the Milwaukee’s 15.1-inch length and 7.1-inch width. Like the Milwaukee, it is a bare tool compatible with 18V batteries, but it requires Makita LXT batteries instead. The Makita gives up the Milwaukee’s all-metal gearbox and counterbalance mechanism for extreme portability. It is ideal for tight spaces where the Milwaukee’s bulk is a disadvantage. You trade raw power and durability for ease of handling. Pick this Makita if you need a lightweight tool for overhead or confined area work.
DEWALT 20V Brushless Reciprocating Saw
The DEWALT DCS382B operates on a 20V system, so it is not compatible with your M18 batteries. It features a brushless motor, similar to the RYOBI alternative. The tool is designed as a compact reciprocating saw for users who already own DEWALT 20V batteries. It lacks the specific weight and dimension data in the provided specs, but it is positioned as a budget-friendly option. It gives up the Milwaukee’s all-metal gearbox protection and Quik Lok clamp. Instead, it offers brushless efficiency and a lower entry point for DEWALT users. You should pick this if you are switching ecosystems or already have DEWALT batteries. It is a practical choice for tradespeople who prioritize cost and brushless performance over the Milwaukee’s specific vibration control.
DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw
The DEWALT ATOMIC 20V MAX is a one-handed reciprocating saw that weighs just 1 pound. This is drastically lighter than the Milwaukee’s 7.4-pound weight. It measures 3.58 inches in width, height, and length, making it extremely compact compared to the Milwaukee’s larger frame. It uses a 20V battery system, so it is not compatible with M18 batteries. Like the Milwaukee, it is a bare tool. It sacrifices the Milwaukee’s power and durability for extreme maneuverability. The ATOMIC is designed for tight spaces and one-handed operation. You give up the counterbalance mechanism and all-metal gearbox for a tool that fits in small gaps. Choose this DEWALT if you need a lightweight, compact saw for detailed work where the Milwaukee is too bulky.
DEWALT 20V MAX Compact Reciprocating Saw
The DEWALT DCS387B includes a built-in work light, a feature the Milwaukee 2621-20 does not have. It weighs 4.96 pounds, which is lighter than the Milwaukee’s 7.4 pounds. The tool measures 5.81 inches in length, making it much shorter than the Milwaukee’s 15.1-inch body. It uses 20V MAX batteries, so it is not compatible with your M18 system. It is a bare tool, just like the Milwaukee. This model prioritizes visibility and compact size over raw cutting speed. It gives up the Milwaukee’s all-metal gearbox and Quik Lok clamp. The work light is useful for low-light confined spaces. Pick this DEWALT if you need a compact saw with illumination for tight areas. It is a practical alternative for users who value visibility and size over the Milwaukee’s heavier duty construction.
DEWALT 20V Brushless Reciprocating Saw
The DEWALT DCS382B is a 20V brushless reciprocating saw, so it requires DEWALT 20V batteries, not M18. It measures 16 inches in length and 7 inches in width, which is slightly longer and wider than the Milwaukee’s 15.1-inch length and 7.1-inch width. The tool is a bare tool, similar to the Milwaukee. It features a brushless motor and a pivoting shoe for steady cuts. It gives up the Milwaukee’s all-metal gearbox and counterbalance mechanism. Instead, it offers brushless efficiency and a pivoting shoe for better control. You should pick this if you already own DEWALT batteries and need a compact tool. It is a solid alternative for tradespeople who prioritize brushless performance and maneuverability over the Milwaukee’s specific vibration reduction features.
Quick picks
Our 7 picks
Milwaukee M18 Cordless Sawzall
Best for: M18 users needing durable demolition saws
- Power Source
- M18 18V
- Strokes Per Minute
- 3,000 RPM
- Battery Included
- Bare Tool
- Tool Weight
- 7.67 pounds
- Tool Length
- 15.1 inches
- Blade Clamp
- Quik Lok
View on Amazon: Milwaukee M18 Cordless Sawzall Affiliate link
The Milwaukee 2621-20 is an 18V cordless reciprocating saw running at 3,000 RPM. It uses a Quik Lok blade clamp for fast changes and features an all-metal gearbox for durability. The internal counter balance reduces vibration during heavy cuts. You need an M18 battery to operate it, as the tool is sold bare. It suits users already invested in the M18 ecosystem who need a robust saw for demolition or cutting.
Pros
- Quik Lok blade clamp allows quick blade changes
- All-metal gearbox protects internal components from drops
- Internal counter balance reduces vibration during use
- REDLINK Intelligence prevents overheating and power overload
Cons
- Heavier at 7.4 pounds compared to compact competitors
- Sold as a bare tool without battery or charger
- Single-speed operation limited to 3,000 RPM
Good fit if
- You already own M18 batteries and want tool-only compatibility
- You need a durable saw with an all-metal gearbox for tough jobs
- You prefer quick blade changes via the Quik Lok system
Skip if
- You need a lightweight one-handed saw for tight spaces
- You require variable speed control for delicate materials
- You are buying your first tool and need a kit with a battery
Verdict: Milwaukee M18 18V Reciprocating Saw is a heavy-duty option for pros who prioritize durability and vibration control. It fits users who already have M18 batteries and need a reliable saw for demolition work.
RYOBI ONE+ HP 18V Brushless Reciprocating Saw
Best for: Users needing high-speed cutting power
- Power Source
- 18V Cordless
- Stroke Length
- 1-1/4"
- Strokes Per Minute
- 0-3,200 SPM
- Motor Type
- Brushless
- Battery Included
- Tool only
- Tool Weight
- 7.2 pounds
View on Amazon: RYOBI ONE+ HP 18V Brushless Reciprocating Saw Affiliate link
This RYOBI ONE+ HP 18V brushless reciprocating saw delivers up to 3,200 SPM with a 1-1/4-inch stroke length. The tool-free blade release lever allows for quick changes, while the variable speed trigger offers precise control. It weighs 7.2 pounds and includes a pivoting shoe and LED light. You will get aggressive cutting performance for demanding jobs. This tool-only model requires a separate battery.
Pros
- Brushless motor provides up to 3,200 SPM
- Tool-free blade release lever for quick changes
- 1-1/4-inch stroke length for aggressive cutting
- Built-in LED work light illuminates the area
- Non-marring pivoting shoe protects surfaces
Cons
- Heavier at 7.2 pounds compared to compact rivals
- Sold as a bare tool without battery
- Longer 19.2-inch length may be bulky for tight spaces
Good fit if
- You need maximum cutting speed and power
- You already own RYOBI 18V batteries
- You want tool-free blade changes
Skip if
- You require a one-handed compact design
- You need a complete kit with battery and charger
- You prefer a lighter tool under 5 pounds
Verdict: RYOBI ONE+ HP 18V Brushless Reciprocating Saw fits users who prioritize raw cutting speed and already have the compatible battery system. It is not ideal for those needing a lightweight, one-handed tool.
Makita 18V LXT Compact Reciprocating Saw
Best for: tight spaces and users with Makita batteries
- Power Source
- 18V LXT
- Stroke Length
- 1/2 in.
- Strokes Per Minute
- 0-3,000 SPM
- Battery Included
- Bare tool only
- Tool Weight
- 3.9 lbs. (with battery)
- Tool Length
- 15-5/8 in.
View on Amazon: Makita 18V LXT Compact Reciprocating Saw Affiliate link
This Makita 18V LXT reciprocating saw offers a variable speed of 0-3,000 strokes per minute with a 1/2-inch stroke length. Its compact 15-5/8-inch design and 3.9-pound weight allow for easy handling in tight quarters. The tool-less blade change system speeds up swaps. It suits users who need a lightweight, maneuverable saw for close-quarter cutting tasks.
Pros
- Variable speed control from 0 to 3,000 strokes per minute
- Compact 15-5/8-inch length for tight spaces
- Tool-less blade change system for quick swaps
- Dual-position on/off switch for paddle or trigger operation
Cons
- Sold as a bare tool without a battery
- Heavier than some one-handed alternatives
- Single battery platform limits cross-use with other brands
Good fit if
- You need a compact saw for tight spaces
- You already own Makita 18V LXT batteries
- You prefer a lightweight tool for overhead work
Skip if
- You need a one-handed reciprocating saw
- You do not own an 18V battery
- You require a higher stroke length than 1/2 inch
Verdict: Makita 18V Compact Reciprocating Saw fits users who prioritize compact size and lightweight handling in tight spaces. It is ideal for those already invested in the Makita 18V LXT battery system who need a versatile, maneuverable tool for close-quarter cutting.
DEWALT 20V Brushless Reciprocating Saw
Best for: existing DEWALT 20V battery owners
- 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 renewed DEWALT DCS382B is a 20V MAX cordless reciprocating saw. It uses a brushless motor for efficient cutting with a 1-1/8 inch stroke length. You control speed with a 2-finger variable trigger. The compact design aids mobility in tight spaces. It comes as a tool only, meaning you need your own battery. It suits users who already own DEWALT 20V batteries and need a reliable, compact saw for general demolition or pruning tasks.
Pros
- Brushless motor for optimized cutting efficiency
- 2-finger variable trigger for speed control
- 1-1/8 inch stroke length for fast cuts
- Keyless twist-style blade clamp for quick changes
- Compact size for high range of motion
Cons
- Sold as a tool only without a battery
- Renewed condition may show cosmetic wear
- No variable speed dial for fine adjustments
Good fit if
- You already own DEWALT 20V MAX batteries
- You need a compact saw for tight spaces
- You want a brushless motor for longer life
Skip if
- You need a complete kit with a battery
- You require a new, factory-sealed unit
- You prefer a standard single-finger trigger
Verdict: DEWALT DCS382B 20V Brushless Recip Saw offers efficient cutting in a compact body for users with existing 20V batteries. It is ideal for tradespeople who prioritize brushless performance and quick blade changes over included accessories.
DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw
Best for: One-handed use in tight spaces
- 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
The DEWALT ATOMIC is a one-handed reciprocating saw designed for tight spaces. It measures 12.5 inches from front to back and weighs 1 pound. The brushless motor delivers efficient performance, while the pivoting shoe offers multiple points of contact. You get a variable-speed trigger and an LED light. This tool-only kit suits users needing a compact, lightweight option for demolition or pruning tasks.
Pros
- Compact 12.5-inch length fits tight spaces
- Lightweight 1-pound build for reduced fatigue
- Brushless motor for improved performance
- Pivoting shoe provides more contact points
- LED illuminates dark work areas
Cons
- Tool only; battery and charger not included
- Smaller motor capacity than standard recip saws
- No keyless chuck for blade changes
Good fit if
- You need a one-handed tool for overhead work
- You require a saw that fits in tight spaces
- You already own 20V MAX batteries
Skip if
- You need a full-size saw for heavy demolition
- You want a complete kit with batteries included
- You prefer a fixed shoe for stability
Verdict: DEWALT ATOMIC 20V MAX One-Handed Recip Saw is ideal for users who need a lightweight, compact tool for tight spaces. It fits those who already have 20V MAX batteries and prioritize maneuverability over raw power.
DEWALT 20V MAX Compact Reciprocating Saw
Best for: confined spaces and low-light 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 compact reciprocating saw measures 14 inches in total length, allowing you to fit between studs and cut in confined spaces. It features a variable-speed trigger ranging from 0 to 2,900 strokes per minute for precision control. The 1-1/8-inch stroke length delivers fast cutting speeds, while the bright LED light illuminates dark work areas. You get a 4-position tool-free blade clamp for versatility.
Pros
- Compact 14-inch total length fits between studs
- Variable-speed trigger offers 0-2,900 SPM control
- Bright LED illuminates dark work areas
- 4-position tool-free blade clamp for flush cuts
Cons
- Lower maximum speed of 2,900 SPM compared to 3,000 SPM on the Milwaukee 2621-20
- Heavier at 4.96 lbs compared to lighter alternatives
- Bare tool only requires separate battery purchase
Good fit if
- You need to make cuts in tight, confined spaces
- You require an LED light for visibility in dark areas
- You prefer tool-free blade changes with multiple positions
Skip if
- You need maximum cutting speed above 2,900 SPM
- You want a lighter tool for overhead work
- You prefer a one-handed design for easier handling
Verdict: DEWALT 20V MAX Compact Recip Saw suits users who prioritize compact size and LED visibility over raw speed. It is a practical option for tight spaces where its 14-inch length provides an advantage.
DEWALT 20V Brushless Reciprocating Saw
Best for: Users with existing DEWALT 20V batteries
- 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 reciprocating saw uses a brushless motor for efficient cutting. It features a 1-1/8 inch stroke length and a 2-finger variable trigger for speed control. The compact design measures 16 inches long, aiding mobility in tight spaces. A pivoting shoe stabilizes the tool against the workpiece. You get a keyless blade clamp for quick changes. This bare tool requires a separate 20V MAX battery.
Pros
- Brushless motor optimizes cutting power and efficiency
- 1-1/8 inch stroke length enables fast cuts
- 2-finger variable trigger offers precise speed control
- Compact 16-inch length improves range of motion
- Pivoting shoe stabilizes the saw during use
Cons
- Sold as a bare tool without battery
- No electronic clutch to reduce kickback
- Fixed 1-1/8 inch stroke length lacks adjustment
Good fit if
- You need a compact saw for tight spaces
- You already own DEWALT 20V MAX batteries
- You prefer a pivoting shoe for stability
Skip if
- You require a battery included in the box
- You need variable stroke length settings
- You want an electronic clutch for safety
Verdict: DEWALT DCS382B 20V MAX Compact Recip Saw fits users who already have DEWALT batteries and need a compact tool for tight spaces. It delivers steady cuts through its brushless motor and pivoting shoe.
Specifications side by side
| Spec | Milwaukee M18 Cordless Sawzall | RYOBI ONE+ HP 18V Brushless Reciprocating Saw | Makita 18V LXT Compact Reciprocating Saw | DEWALT 20V Brushless Reciprocating Saw | DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw | DEWALT 20V MAX Compact Reciprocating Saw | DEWALT 20V Brushless Reciprocating Saw |
|---|---|---|---|---|---|---|---|
| Power Source | M18 18V | 18V Cordless | 18V LXT | 20V MAX | 20V MAX | 20V MAX | 20V MAX |
| Stroke Length | not stated | 1-1/4" | 1/2 in. | 1-1/8 in. | not stated | 1-1/8 in. | 1-1/8 in. |
| Strokes Per Minute | 3,000 RPM | 0-3,200 SPM | 0-3,000 SPM | not stated | not stated | 0-2,900 SPM | not stated |
| Motor Type | not stated | Brushless | not stated | Brushless | Brushless | not stated | Brushless |
| Battery Included | Bare Tool | Tool only | Bare tool only | Tool Only | Tool Only | Bare tool only | Tool Only |
| Tool Weight | 7.67 pounds | 7.2 pounds | 3.9 lbs. (with battery) | not stated | not stated | 4.96 lbs. | not stated |
| Tool Length | 15.1 inches | 19.2 inches | 15-5/8 in. | not stated | 12.5-inch front to back | 14 in. | not stated |
| Blade Clamp | Quik Lok | Tool-free blade release lever | Tool-less blade change | Keyless, twist-style | Tool-free blade release | 4-position, tool-free | Keyless, twist-style |
| Variable Speed Trigger | not stated | Variable speed trigger | not stated | 2-finger variable trigger | Variable-speed trigger | Variable-speed trigger | 2-finger variable trigger |
| Voltage | 18V | 18V | 18V | 20V | 20V | 20V | 20V |
| Included Tools | Reciprocating Saw | Reciprocating Saw | Reciprocating Saw | Reciprocating Saw | Reciprocating Saw | Work Light, Reciprocating Saw | Reciprocating Saw |
| Dimensions | 15.1 × 7.1 × 23 inches | 19.2 × 6.14 × 3.27 inches | 17 × 4 × 7 inches | not stated | 3.58 × 3.58 × 3.58 inches | 5.81 × 1.38 × 2.95 inches | 16 × 7 × 4 inches |
| Weight | 7.67 pounds | 7.2 pounds | 2.69 pounds | not stated | 1 pounds | 4.96 pounds | not stated |
| Size | Pack of 1 | not stated | not stated | not stated | One Size | One Size | One Size |
| Color | Red/Black | Green/Black | Teal | Black | Multi | Multi | Black |
| Model | 2621-20 | PBLRS02B | XRJ01Z | not stated | DCS369B | DCS387B | DCS382B |
Another guide worth a look: milwaukee 0880 20 18v cordless lithium ion alternatives.
Frequently asked questions
Which reciprocating saw is the lightest option for tight spaces?
The DEWALT ATOMIC 20V MAX One-Handed Reciprocating Saw is the lightest choice at just 1 pound. Its compact design measures 3.58 inches in width, height, and length. This tool fits users who prioritize maneuverability over raw power. It is ideal for one-handed use in confined areas where standard saws cannot reach.
Are there brushless motor alternatives to the Milwaukee model?
Yes, both the RYOBI ONE+ HP and the DEWALT DCS382B feature brushless motors. The RYOBI model offers high-speed cutting power for users needing efficiency. The DEWALT option provides steady cuts through its brushless design. Both tools deliver reliable performance while extending battery life compared to brushed alternatives.
Which saw includes a built-in work light?
The DEWALT 20V MAX Compact Reciprocating Saw includes a work light. This feature aids visibility in low-light conditions or tight spaces. The tool measures 5.81 inches in length, providing a compact profile. It suits users who prioritize LED visibility and compact size over raw cutting speed.
Is there a compact option from Makita?
The Makita 18V LXT Compact Reciprocating Saw is a compact option. It weighs only 2.69 pounds and measures 17 inches in length. This tool fits users who need lightweight handling in tight spaces. It is ideal for those already invested in the Makita 18V LXT battery system.
Which saw is best for existing DEWALT 20V battery owners?
The DEWALT DCS382B 20V Brushless Reciprocating Saw is ideal for existing 20V battery owners. It offers efficient cutting in a compact body. The tool features a pivoting shoe for steady cuts. It suits tradespeople who prioritize brushless performance and quick blade changes over included accessories.
What is the difference between the RYOBI and Milwaukee models?
The RYOBI ONE+ HP uses a brushless motor for higher efficiency, while the Milwaukee relies on an all-metal gearbox. The RYOBI weighs 7.2 pounds, slightly lighter than the Milwaukee’s 7.4-pound frame. The RYOBI measures 19.2 inches long, making it comparable in length to the Milwaukee’s 15.1-inch body.
Which tool is best for demolition work?
The Milwaukee M18 Cordless Sawzall is a heavy-duty option for pros who prioritize durability. It features a counterbalance mechanism to reduce vibration during heavy demolition. The tool weighs 7.4 pounds and includes a Quik Lok blade clamp. It fits users who already have M18 batteries and need a reliable saw.






