Milwaukee 2821-20 M18 FUEL Sawzall Reciprocating Saw
- Surface Recommendation: Metal
- Power Source: Battery
- Cutting Angle: 90 degrees
- Wattage: 3000 watts
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A dependable cordless option for metal cutting tasks within the M18 ecosystem, best judged against how much you already have invested in that battery platform.
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ASIN: B08WG2HC81Model: 2821-20Category: Saws
Overview
The Milwaukee 2821-20 is a cordless portable band saw built on the M18 platform for cutting metal stock, conduit, and pipe on job sites without a cord. It pairs a compact metal frame with an 18 volt battery interface, aimed at electricians, plumbers, and metal fabricators.
Portable band saws trade the raw cutting speed of a corded tool for the freedom to work anywhere a battery can reach, and the 2821-20 fits that role for anyone already carrying M18 packs. Blade speed and blade choice matter more here than the tool itself once you're cutting different material thicknesses.
- 18 volt M18 cordless platform
- Compact metal frame construction
- 6.8 pound tool weight
Who it's for
Suits tradespeople who already run Milwaukee's M18 battery system and need to cut metal, conduit, or threaded rod away from an outlet.
Pros and cons
- Cordless freedom on the M18 battery platform
- Light enough for one-handed use on tight cuts
- Metal housing built for job site use
- Sold bare, no battery or charger included
- Blade life depends on matching blade to material
Performance notes
Blade speed on this model is rated at 3000, which on a portable band saw typically refers to surface feet per minute and governs how cleanly it cuts through different metal thicknesses and alloys. The metal housing and roughly 6.8 pound weight keep it light enough for one-handed bracing on overhead or awkward cuts.
Specifications
| Brand | MILWAUKEE |
|---|---|
| Model | 2821-20 |
| Dimensions & fit | |
| Item Weight | 6.8 poundslower than 55% of 194 saws |
| Item Dimensions L X W X H | 10 × 6 × 4 inches |
| Capacity & performance | |
| Speed | 3000 |
| Power & efficiency | |
| Power Source | Battery |
| Wattage | 3000 wattshigher than 98% of 103 saws |
| Voltage | 18 voltslower than 78% of 197 saws |
| Construction & materials | |
| Blade Material | Metal |
| Handle Material | Plastic |
| Color | Black |
| Included components | |
| Unit Count | 1 |
| Included Components | Bare Tool |
| Warranty & support | |
| Warranty Type | Limited |
| Other details | |
| Surface Recommendation | Metal |
| Cutting Angle | 90 degreeshigher than 70% of 110 saws |
| Blade Shape | Rectangular |
| Number Of Teeth | 24 |
| Number Of Batteries | 1 Lithium Ion batteries required. |
| Other Special Features Of The Product | Brushless |
| Item Type Name | Sawzall |
Closest rivals on specs
DEWALT DCS571B ATOMIC 20V MAX Circular Saw 4-1/2 Inch- Voltage 18 vs 20 volts (-10%)
Frequently asked questions
Does the Milwaukee 2821-20 come with a battery?
No. The 20 in the model number marks it as a bare tool, so a battery and charger have to be purchased separately.
What is the 2821-20 designed to cut?
It is built as a portable band saw for metal stock, conduit, and similar material rather than wood framing.
What voltage battery does it use?
It runs on Milwaukee's 18 volt M18 battery system.