4.0Ah Battery Cordless Impact Wrench
- Impact
- 5 pounds
A brushless cordless impact wrench rated at 320 foot pounds with a 4.0Ah battery included, reasonable for shop and automotive fastening work, though brand details are unclear on this listing.
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How it ranks among the 284 impacts we track
4.2★ across 170 Amazon ratings, Bayesian-smoothed toward the category average.
170 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
300+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 284 impacts we track - how the scorecard works · full impacts data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A cordless 1/2 inch impact wrench with a brushless motor, rated at 320 foot pounds (430 newton meters) of torque and including a 4.0Ah battery, weighing about 5 pounds.
The brand and model fields on this listing are unclear, with the title itself carrying the key specs: brushless motor, 1/2 inch drive, and a 320 foot pound torque rating paired with an included 4.0Ah battery. At 5 pounds it sits in a manageable weight range for one handed use on lug nuts, fasteners, and general automotive or shop work.
- 320 foot pounds (430 newton meters) torque
- Brushless motor
- 1/2 inch drive
- 4.0Ah battery included, about 5 pounds total
Who it's for
Fits users needing a cordless impact wrench for automotive or general fastening work who want a battery included rather than sold separately. Buyers who prioritize a well established brand name may want to verify manufacturer details before ordering, since this listing's brand field is unclear.
Strengths and trade-offs
Drawn from this product's published specifications.
- Brushless motor for efficiency and longevity
- 320 foot pound torque rating suits automotive fastening
- 4.0Ah battery included with the tool
- Brand and model fields are unclear on this listing
- 5 pound weight is worth checking against one handed comfort
Performance notes
A brushless motor typically runs cooler and lasts longer than brushed alternatives, and the 320 foot pound (430 newton meter) torque rating puts this in range for lug nuts and mid size fasteners, backed by the included 4.0Ah battery for run time.
Specifications
| Brand | 4.0Ah |
|---|---|
| Item Weight | 5 pounds |
How it compares
This product against the closest alternatives we track in impacts.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| 4.0Ah Battery Cordless Impact WrenchThis product | 4.2 / 5 | 170 | 3.8 / 5 |
| DEWALT DCF845B ImpactDeWALT | 4.7 / 5 | 12,700 | 4.5 / 5 |
| Milwaukee 2457-20 ImpactMILWAUKEE | 4.6 / 5 | 8,078 | 4.5 / 5 |
| GEARWRENCH 81270 ImpactGEARWRENCH | 4.7 / 5 | 4,983 | 4.4 / 5 |
| AOBEN AB7331T ImpactAOBEN | 4.4 / 5 | 10,707 | 4.4 / 5 |
Similar impacts from other brands
Questions about the 4.0Ah impacts
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What torque does this impact wrench deliver?
It is rated at 320 foot pounds, equivalent to 430 newton meters.
Does it come with a battery?
Yes, a 4.0Ah battery is included based on the listing title.
Is the motor brushless?
Yes, the listing specifies a brushless motor.