Greenworks ISG402 24V 1950 in-lbs Brushless Impact Driver Kit

By Greenworks · Impact Drivers · Power Tools

  • Max torque 1950 in-lbs
  • No-load speed 2600 RPM
  • Impact rate 3500 IPM
  • Two 2.0 Ah 24V batteries included
  • Weight 1.87 lb

Price not listed

Prices are snapshots. Check the current price with the store.

Summary

A compact, lightweight 24V brushless impact driver kit for homeowners and DIYers, sold with two 2.0Ah batteries, a charger and a bag. Its standout features are a 5-inch length and 2 lbs bare weight, with enough torque for general driving and light drilling; check whether the kit includes a standard charger or the USB-C fast charger variant before buying.

Strengths

  • Compact at roughly 5 inches long and 2 lbs bare, 3 lbs with battery — easy to handle overhead or in tight spaces.
  • Brushless motor with 1,950 in-lbs maximum torque for general driving and light drilling.
  • 3-year limited warranty on both tool and battery.
  • Batteries work across the full Greenworks 24V POWERALL platform of 200+ tools.
  • Kit bundles two batteries, a charger and a bag, which beats buying components separately.

Weaknesses

  • Grip favors larger hands; rubber overmold helps but small hands may find it chunky.
  • No independent torque measurement confirms the 1,950 in-lbs figure.
  • Kit listings vary — some ship with USB-C batteries and a 65W USB-C fast charger, others with a standard charger; check before buying.
  • No service or internal parts information for this model is published on the Greenworks US site.
  • Greenworks’ own lineup now includes the newer ISD401 at 2,650 in-lbs for $69.99, overshadowing the ISG402 on paper.

Verified specifications

ModelISG402 (SKU 3806402 on Greenworks US site).
Voltage24V DC (Greenworks 24V POWERALL lithium-ion battery platform).
Motorbrushless.
Max torque1,950 in-lbs (300 Nm), manufacturer-rated maximum.
No-load speed0-2,600 RPM.
Impact rate3,500 IPM.
Drive size1/4-inch hex quick-release collet.
Speed settings3-speed electronic power selection with variable speed trigger.
LED work lightyes.
Weight2 lbs (bare tool); 3 lbs with 2.0Ah battery.
Lengthapproximately 5 inches.
Warranty3-year limited on tool and battery.
Battery compatibilityall Greenworks 24V POWERALL batteries (200+ tool ecosystem).
Battery recharge timeapproximately 55-60 minutes per 2.0Ah battery.
In the boximpact driver, two 2.0Ah 24V batteries, charger, tool bag, one bit.
Full research notes and sources

Driving and drilling performance

The tool handled small screws and 3-inch lag bolts without difficulty, and powered through 2x lumber with a 1/2-inch twist bit and a 3/4-inch spade bit. On the tougher test — driving 8-inch structural screws into stacked OSB subfloor — it averaged roughly 22 seconds per screw, slower than prosumer competitors. PTR noted the compact size and low weight as standout features, and described the grip as favoring larger hands.

Battery, charger and running costs

The kit includes two 2.0Ah batteries and a standard charger; some kit variants ship with USB-C batteries and a 65W USB-C fast charger instead. Recharge takes about 55-60 minutes per 2.0Ah battery. No independent battery runtime test was found. Replacement 2.0Ah batteries and chargers are available as accessories; internal component parts availability through Greenworks is unknown. The 3-year limited warranty covers both tool and battery, but Greenworks states it is not transferable and requires the original purchase receipt.

Which model this is

This page covers the ISG402, SKU 3806402, part of the Greenworks 24V POWERALL battery platform.

ASIN B0CWP4HY42.

Greenworks also sells a newer 24V Pro impact driver (model ID5250, 2,650 in-lbs) and the ISD401 at 2,650 in-lbs listed at $69.99 — these are different tools that appear in search results alongside the ISG402 and should not be confused with it.

Is it worth it?

At Greenworks’ own direct sale price of $97.49 (October 2026, compare-at $129.99), the ISG402 is a reasonable choice for a homeowner who wants a compact, affordable impact driver and values the 24V POWERALL battery ecosystem. At $100-120 the value is fair — buyers should weigh the ISD401 alternative with higher torque at a lower price. Above $130 the ISG402 looks weak next to that newer same-brand model and prosumer 20V/18V platforms with deeper service networks. Buyers who need faster performance on heavy structural work should look at prosumer alternatives.

Sources

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