Greenworks 24V Cordless Impact Driver ISG402

Greenworks 24V Cordless Impact Driver ISG402

The Greenworks 24V Cordless Impact Driver Balances Power And Value

We initially received this Greenworks 24V Cordless Impact Driver as part of a combo kit, but we think it deserves a moment in the limelight. We ran it through a few of our standard tests here in the shop to see how it fared once we poured on the pressure.

Greenworks 24V Cordless Impact Driver Performance

Performance Specs

This impact driver boasts an impressive 1,950 in-lbs of torque, 3,500 impacts per minute, and 2,600 RPMs. We put it to the test in both drilling and driving applications.

24V Cordless Impact

On the drilling side, we easily powered through 2x using a 1/2-inch twist bit as well as a 3/4-inch spade bit, essentially converting our lumber into swiss cheese. That may not be what you typically use your impact driver for—but it’s a great test of capabilities.

Turning our attention to driving capabilities, it unsurprisingly handled small screws and 3-inch lag bolts without any difficulty. Unlike some other compact models, its slim profile doesn’t get in your way during precision fastening.

While power isn’t an issue, it is slower on tough applications compared to other Prosumer tools. In our RSS Test (8-inch rugged structural screws into stacked OSB subfloor), it was able to fully drive them in an average of roughly 22 seconds.

Impact drivers still aren’t the go-to for all drilling applications, so we recommend getting the combo kit that includes their 24V cordless drill driver. However, this impact driver can handle a lot of your basic drilling needs if you want just one tool.

Greenworks 24V Cordless Impact Driver Design Notes

Size and Weight

One area where Greenworks truly excelled is in the compact nature of this impact driver, measuring a mere 5 inches from end to end. As a bare tool, it only weighs 2 pounds and when paired with a 2.0Ah battery it weighs just 3 pounds! This is one of the lightest impact drivers we’ve tested.

Greenworks 24V impact driver


The tool feels very robust in a well-built sort of way. The grip favors larger hands and the rubber over-molded grip offers substantial grip even if you’re not wearing gloves or it’s a particularly hot day and your hands are sweaty.

Greenworks ISG402 impact driver collet

Greenworks 24V Cordless Impact Driver Price

The impact driver retails for $119.99 from Amazon. It comes with a pair of 2.0Ah batteries, a charger, and a soft carrying case. In addition, Greenworks backs both the tool and batteries with a 3-year limited warranty.

The Bottom Line

The Greenworks 24V Cordless Impact Driver isn’t likely to win any speed awards, but you also won’t have to spend beaucoup bucks to get your hands on it. From a value standpoint, this is a great option for homeowners and serious DIYers by offering ample power and performance without the high price tag.

Click here to check out last-minute deals from Greenworks.

Greenworks 24V Cordless Impact Driver Specifications

  • Model: Greenworks ISG402
  • Power Source: Greenworks 24V battery
  • No-Load Speed: 0-2,600 RPM
  • Impact Rate: 3,500 IPM
  • Max Torque: 1,950 in-lbs
  • Weight: 2 lbs (bare), 3 lbs (with 2.0Ah battery)
  • LED work light
  • Warranty: 3-year limited tool and battery
  • Price: $119.68

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