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Milwaukee 2721-20 M18 FUEL SAWZALL Reciprocating Saw with ONE-KEY Technology (Bare Tool)

TLDR Review: Milwaukee M18 FUEL SAWZALL 2721-20

Item: Milwaukee M18 FUEL SAWZALL 2721-20
Author: ShopSavvy

By ShopSavvy Team

Published: March 9th, 2026

Pros

•Delivers cordless power comparable to many corded reciprocating saws, including older V28/M28 Sawzall models.
•Integrates seamlessly with Milwaukee’s M18 battery system, allowing users to consolidate chargers and batteries.
•Features ONEY technology with built-in Bluetooth and WiFi locator for tool tracking and customization.
•Tooess blade change system boosts efficiency and convenience during work.
•Variable RPM control allows precise and clean cuts across different materials.
•Highly durable and reliable, meeting the demands of daily professional use.
•Excellent build quality consistent with Milwaukee’s reputation for robust tools.
•Powerful brushless motor performs on par with Milwaukee’s drills and torque tools, ensuring lonasting performance.
•The saw is effective and easy to use for demolition and multurpose cutting tasks.
•Offers power comparable to a 1mp corded saw when paired with the M18 RedLithium HD 12.0 battery.

Cons

•The blade holder mechanism is reported to be weak and may not hold blades securely over time, potentially impacting performance.
•The tool is relatively heavy, which may lead to user fatigue during extended cutting sessions.
•The price is on the higher side, making it a significant investment if you don’t already own Milwaukee batteries or tools.
•Some users may find the ONEY Bluetooth features less essential, adding complexity they might not need.

Bottom Line

The Milwaukee 2721-20 M18 FUEL SAWZALL combines professional-grade power, smart connectivity, and cordless convenience, making it a top candidate for pros needing a versatile, battery-powered saw. However, if you’re concerned about blade retention or will be cutting for long periods, keep the weight and blade holder issues in mind. For those invested in the Milwaukee ecosystem, this tool helps standardize batteries and chargers while delivering corded-level performance. If you want similar power without the blade holder concern, you might also want to explore alternative M18 FUEL reciprocating saw models as they may offer different blade holder designs.