Greenworks 24V Pro Impact Wrench IW5550 arrives as the newest entry in the company’s brushless 24‑volt line, promising professional‑grade torque at a consumer‑friendly price.
Performance specs and mode options
The IW5550 is powered by a brushless motor that can spin up to 2,400 RPM. Its peak torque reaches 560 ft‑lbs, which exceeds the breakaway torque of many comparable tools. The wrench offers three selectable speed settings plus an Auto Mode that disengages rotation when a fastener turns free, reducing the chance of a projectile bolt.
Torque is listed per mode: 1,150 ft‑lbs, 2,300 ft‑lbs, the highest setting reaches 3,400 ft‑lbs, and Auto Mode provides full torque. Greenworks does not publish the exact RPM for each speed, but the torque figures suggest a graduated power curve suitable for a range of applications.
In comparison, a Milwaukee M18 Fuel model reports a higher no‑load speed of 2,700 RPM and 650 ft‑lbs of breakaway torque. The Greenworks unit weighs 2.9 lb bare, 3.9 lb with a 2.0 Ah battery, and 4.56 lb with a 4.0 Ah pack, positioning it lighter than many pro‑class competitors.
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Design, ergonomics and practical features
The wrench’s head measures 5.75 in, allowing access to tight spaces that larger tools might miss. Its balance remains steady even when paired with the larger battery, which can help limit wrist fatigue during prolonged use.
Overmolded rubber bumpers protect the motor housing, and the grip area includes textured grooves to channel away sweat and debris.
It feels solid in hand.
Additional accessories include an LED worklight for illumination in dark areas, a two‑position belt hook for customizable placement, and a tether‑ready loop for quick attachment to a belt or harness when working at height.
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From a broader perspective, the IW5550 illustrates how battery‑powered impact tools are closing the gap with traditional corded models. Its torque numbers sit comfortably within the range needed for automotive repairs, machinery maintenance, and general construction tasks, showing that a 24‑volt platform can now meet many professional demands without the bulk of higher‑voltage systems.
Pricing, availability and warranty
Greenworks sells the IW5550 as a bare tool for $99, a price point that undercuts many established brands. The tool carries a five‑year warranty, and it is stocked at major retailers such as Walmart, where it can be purchased in‑store or ordered for delivery.
For users who need higher torque, the company also offers mid‑torque and high‑torque 24 V models, expanding the lineup to cover a broader spectrum of job requirements.
Overall, the impact wrench delivers a solid mix of power, weight savings, and ergonomic touches at a price that appeals to both DIY enthusiasts and cost‑conscious professionals.
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