The Milwaukee PROMO 2821-20 M18 FUEL SAWZALL Recip Saw, Tool Only is Milwaukee's full-size cordless reciprocating saw, offered here as a promotional bare tool. This is a reciprocating saw designed for demolition, remodeling, pipe cutting, and general rough cutting in wood, metal, and mixed materials. Model Number 2821-20. Milwaukee calls it the next generation of the SAWZALL, built for the toughest applications on the jobsite.

Speed is the headline. A POWERSTATE brushless motor drives the blade at up to 3,000 strokes per minute through a 1-1/4" stroke, and Milwaukee rates it as the fastest cutting reciprocating saw in its class. Among Milwaukee recip saws, it is the full-size, two-handed workhorse rather than a compact one-handed model. The long stroke clears chips and sawdust out of the kerf on every pass, which keeps the blade cutting instead of rubbing in nail-embedded framing, plastic and metal pipe, and strut. A variable speed trigger lets you start slow to set the blade, then open it up once the cut is established.

REDLINK PLUS intelligence manages the tool, battery, and charger as one system. It keeps performance up under load and protects against overloading, overheating, and over-discharging, which matters on a saw that spends its life buried in tough material. Milwaukee recommends pairing it with an M18 REDLITHIUM XC5.0 battery pack (sold separately) for the best balance of power and run time.

Milwaukee calls this its most durable cordless SAWZALL yet, and the upgrades are in the right places. The lever-action QUIK-LOK blade clamp is wear-resistant and anti-corrosion, so blade changes stay fast after months of dust, moisture, and grime. A metal-reinforced battery connection improves durability and battery retention over the life of the tool, a common failure point on hard-used saws.

Jobsite details round it out. The adjustable, pivoting shoe lets you move the cut to a fresh section of blade as teeth wear, so you get more life out of every blade. The built-in LED lights the cut in basements, crawlspaces, and wall cavities, and the hang hook keeps the saw off the floor between cuts. At 17.1" long and 6.8 lbs bare, it is a full-size saw that is lighter than the previous generation, without trading away cutting power.

The 2821-20 is compatible with all M18 batteries and chargers, so it drops straight into an existing M18 setup. For heavy demo, the Milwaukee 48-11-1850 M18 REDLITHIUM XC5.0 battery is the pack Milwaukee recommends. Battery and charger are not included with this tool-only version.

Who should buy it? Remodelers, demo crews, plumbers, electricians, HVAC techs, and general contractors who already run M18 and want a fast, durable cordless SAWZALL without paying for batteries they do not need.

The Milwaukee PROMO 2821-20 M18 FUEL SAWZALL Recip Saw Is the Demo Saw to Beat

If you are on M18 and need a reciprocating saw, this is the one most crews end up with, and the promo price makes the decision easy.

• Who it's for: Remodelers, demo crews, and service trades already running M18 batteries.
• Why it stands out: Class-leading cutting speed, a 1-1/4" stroke, and durability upgrades on the clamp and battery rail where older saws wear out.
• Worth knowing: Tool only. It is a full-size saw, so for one-handed work in tight spaces a compact HACKZALL-style saw is the better fit.

• Does it come with a battery? No. This is the tool-only version. Battery and charger are sold separately.
• What is the stroke length and speed? 1-1/4" stroke at up to 3,000 strokes per minute.
• Does it have orbital action? No. It is a straight reciprocating saw built for speed across wood, metal, and mixed materials.
• How much does it weigh? 6.8 lbs without a battery.