Impact CrazyEngine Giant 1500 Ultra
- Impact
- 10.5 pounds
- 21 volts
- Better rated than 62%
A heavy 21 volt cordless impact tool with a strong 4.7 star rating, best suited to demanding jobs rather than lightweight overhead work.
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How it ranks among the 284 impacts we track
4.7★ across 34 Amazon ratings, Bayesian-smoothed toward the category average.
34 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ 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
The CrazyEngine Giant 1500 Ultra is a cordless impact tool running on a 21 volt battery platform, weighing a substantial 10.5 pounds. It has earned a strong 4.7 star rating from 34 reviews and about 100 purchases in the past month.
At 10.5 pounds this sits on the heavier end for a cordless impact tool, which usually points to a bigger motor and battery rather than a compact driver meant for overhead work. The name includes the number 1500, but since it is not presented as a labeled torque figure in the spec data, it should not be read as a confirmed output rating.
- 21 volt battery platform
- Weighs 10.5 pounds
- 4.7 out of 5 stars from 34 ratings
- About 100 bought in the past month
Who it's for
Fits a buyer who wants a heavy-duty cordless impact tool for demanding jobs and is comfortable with the extra weight that comes with more power. Less suited to overhead or one-handed work, where a lighter compact impact driver would be easier to manage.
Strengths and trade-offs
Drawn from this product's published specifications.
- 21 volt cordless battery platform
- 4.7 star rating from 34 buyers
- Substantial 10.5 pound build for heavy jobs
- 10.5 pounds is heavy for extended one-handed use
- Torque figure not confirmed as a labeled spec
Performance notes
A 10.5 pound build on a 21 volt platform suggests a larger motor and battery than a compact impact driver, which typically translates to more sustained torque under load. The tradeoff is fatigue on extended jobs, since the added weight has to be held and maneuvered by hand.
Specifications
| Brand | Impact |
|---|---|
| Item Weight | 10.5 pounds |
| Voltage | 21 volts |
Other Impact impacts
How it compares
This product against the closest alternatives we track in impacts.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Impact CrazyEngine Giant 1500 UltraThis product | 4.7 / 5 | 34 | 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 Impact impacts
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What voltage does the CrazyEngine Giant 1500 Ultra run on?
It uses a 21 volt battery platform.
How much does the CrazyEngine Giant 1500 Ultra weigh?
About 10.5 pounds.
Does the 1500 in the name mean 1500 foot-pounds of torque?
That is not confirmed in the listed specs, so treat it as part of the product name rather than a verified torque rating.