1/2 Impact Wrench
- Impact
- 3.8 pounds
- 21 volts
A lightweight 21 volt option for basic 1/2 inch impact work, though the lack of torque figures and brand identity make it hard to compare against known tools.
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How it ranks among the 284 impacts we track
4.6★ across 104 Amazon ratings, Bayesian-smoothed toward the category average.
104 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
50+ 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
This is a 21 volt cordless impact wrench built around a 1/2 inch square drive, the standard size for lug nuts and larger fasteners. At 3.8 pounds it sits on the lighter end for this drive size, which helps with one handed use under a vehicle or overhead.
The listing does not name a recognizable brand, and the spec sheet is limited to voltage and weight, so treat this as an unbranded or private label tool rather than a flagship model. Buyers considering it should confirm battery and charger inclusion before ordering, since neither is listed here.
- 21 volt cordless motor
- 1/2 inch square drive
- 3.8 pound tool weight
- Compact size for one handed use
Who it's for
A DIYer or home mechanic doing wheel changes and occasional fastening work gets the most out of this tool. A shop running it daily against seized bolts needs documented torque and brand support this listing does not provide.
Strengths and trade-offs
Drawn from this product's published specifications.
- Light weight for a 1/2 inch impact wrench
- 1/2 inch drive fits standard lug nuts and sockets
- No torque or impact rate specs listed
- Brand not clearly identified
- Battery and charger inclusion unclear
Performance notes
The 21 volt motor turns a 1/2 inch square drive, the size used for most passenger vehicle lug nuts and mid-size fasteners. No torque or impact rate is listed, so expected output for stuck or high-torque fasteners is unknown.
Specifications
| Brand | 1/2 |
|---|---|
| Item Weight | 3.8 pounds |
| Voltage | 21 volts |
Other 1/2 impacts
How it compares
This product against the closest alternatives we track in impacts.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| 1/2 Impact WrenchThis product | 4.6 / 5 | 104 | 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 1/2 impacts
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What size drive does this impact wrench use?
It uses a 1/2 inch square drive, the standard size for lug nuts and many general fastening tasks.
How much does it weigh?
3.8 pounds, on the lighter side for a 1/2 inch drive impact wrench.