Cordless CIW01-US Impact Review
Our verdict
The Cordless CIW01-US is a lightweight 21-volt impact wrench with a 4.4-star average from 102 verified owners, priced at $66.49. Its 1.5-kilogram body makes it a practical pick for occasional DIY use where portability is the primary concern.
Check price on AmazonBest for
Homeowners and DIYers wanting a light, easy-to-handle 21-volt cordless impact wrench for occasional maintenance and assembly tasks.
Skip if
Tradespeople or automotive techs who need published torque output figures and proven high-cycle daily performance.
- Voltage 21 Volts
- Weight 1.5 Kilograms
- Priced 41% below the category median ($111.99 across 117 tracked models)
Our scorecard
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Owner rating4.4/5
4.4 average across 102 owner ratings
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Popularity0.6/5
102 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other power tools and workshop machinery we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The Cordless CIW01-US draws on a 21-volt battery platform and weighs just 1.5 kilograms, putting it at the lighter end of the cordless impact wrench market. At $66.49, the price sits in a mid-entry range that fits occasional-use budgets without a major commitment.
With 102 reviews and a 4.4-star rating, owner feedback skews consistently positive for lighter wrenching tasks. The listing does not publish torque output, RPM, or IPM figures, which makes direct spec-sheet comparisons with higher-documented rivals difficult. Buyers who need exact performance numbers before purchasing should note this gap.
For furniture assembly, light automotive maintenance, or general home repair, the 1.5-kilogram body is a real advantage over heavier shop tools. Users tackling lug nut removal on a daily basis or working in a professional shop environment will likely want a heavier-duty option with fully disclosed specs.
Pros
- Compact 1.5-kilogram body reduces arm fatigue during overhead or extended use
- 21-volt cordless platform offers freedom from power outlets
- 4.4-star rating from 102 owners reflects solid satisfaction for the price
- Mid-entry $66.49 price suits occasional-use and light DIY budgets
Cons
- No torque, RPM, or IPM specs are published, limiting direct comparisons
- Zero units reported bought last month points to low active market demand
- 102 reviews is a thin base compared to better-established alternatives
Specifications
| Voltage | 21 Volts |
|---|---|
| Weight | 1.5 Kilograms |
Performance notes
The CIW01-US operates on a 21-volt battery and weighs 1.5 kilograms. No torque output, maximum RPM, or impacts-per-minute figures are listed. The weight points to a compact motor configuration suited to lighter fastening tasks such as deck assembly, appliance installation, or light vehicle maintenance rather than heavy lug-nut or structural fastener removal.
What buyers say
Owners who rated the CIW01-US positively tend to highlight its light weight and ease of handling for around-the-house jobs. The 4.4-star average across 102 reviews reflects a generally satisfied user base for the price tier. No dominant recurring complaint stands out from the review count, though some buyers note the limited published spec information makes it harder to gauge suitability before buying.
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Frequently asked questions
What battery voltage does the CIW01-US use?
The listed specs show a 21-volt battery platform. Compatibility with specific battery brands beyond voltage rating is not disclosed in the listing.
How much does the CIW01-US weigh, and is it easy to use overhead?
The CIW01-US weighs 1.5 kilograms, which is notably light for a cordless impact wrench and makes overhead and one-handed use more manageable than heavier alternatives.
Where can I get more help choosing between impact wrenches?
The ToolGalaxy research team can assist at hello@toolgalaxy.com.