Best Overall Heavy‑Duty Cordless
Milwaukee M18 FUEL Brushless Cordless Sawzall (2821-20)
- Max SPM
- 3000
- Blade Clamp
- Lever actuated
- Power Source
- Battery (M18)
- Stroke Length
- —
Pros
- Brushless motor powers through thick steel and embedded nails without bogging down — 23 mentions, 83% positive on power, many comments on effortless metal cutting
- Metal-reinforced battery connection withstands drops and jobsite abuse — 72 mentions, 94% positive on quality
- Cuts dense materials like railroad ties and cast iron smoothly — 16 mentions, 100% positive on cutting performance
- Battery runtime extended enough for a morning of demolition with high-capacity M18 packs — 24 mentions, 58% positive on battery life — while mixed, brushless motor helps extend runtime
Cons
- Weight can be fatiguing during extended overhead or vertical work — a tradeoff for the saw's demolition power — 16 mentions, 56% negative on weight — several owners found it too heavy for one-handed or ladder use
With a maximum 3,000 SPM, the POWERSTATE brushless motor drives the blade through heavy steel, cast iron, and railroad ties without stalling. Nail-studded studs cut cleanly, and the motor keeps its pace under load, meaning fewer passes per cut. A high-output M18 battery provides enough runtime for a full morning of demolition, and the brushless efficiency extends battery life compared to brushed models. Blade swaps are tool-free and the lever clamp holds tight, so you can swap between metal-cutting and demolition blades without delay.
A metal-reinforced battery bay protects the connection from drops and vibration — a common failure point. The lever-actuated blade clamp stays locked during aggressive plunges, and the overall construction endures daily jobsite abuse. This durability translates to fewer replacements and less downtime, offsetting the premium cost for daily users.
The 6.8-pound bare tool can feel heavy during overhead cuts or extended ladder work; the weight becomes more noticeable with high-capacity 12.0Ah batteries. However, the rapid cutting pace reduces the total time spent holding the tool, and using a tool belt hook lets you rest the saw between cuts. Opting for a 5.0Ah pack can improve balance when working above shoulder level.
This Sawzall is for demolition contractors, framers, and serious remodelers who need maximum cutting force and can accept the extra weight. It's overkill for pruning or light homeowner tasks; those who need a lightweight, one-handed tool for overhead pipe cuts should consider the Milwaukee Hackzall or DEWALT's compact brushless saw. If your work is heavily overhead for hours on end, this model's weight will wear you down.
💡 💡 Tip: Use a tool belt hook or work with a partner for long overhead sections to manage the weight.
Bottom line: For demolition pros who need cordless power that won't stall mid-cut, this Sawzall delivers. The weight tradeoff is real, but the cutting speed and toughness make it the default choice when the job demands the most.
Check Latest Price