Robustrue RT1400B Impact
- Impact
- 5 pounds
- 21 volts
A 4.5 rating across 448 reviews and 200 recent purchases suggest steady demand, though verify the drive size and included battery or charger before buying, since none of that is in the listed specs.
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How it ranks among the 284 impacts we track
4.5★ across 448 Amazon ratings, Bayesian-smoothed toward the category average.
448 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ 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 Robustrue RT1400B is a cordless impact tool running on 21 volts and weighing 5 pounds. The weight and voltage point toward an impact wrench rather than a lighter impact driver, though the listing does not state torque output, drive size, or battery capacity.
Robustrue is a newer entrant in the budget cordless tool space, and the RT1400B's 21 volt rating sits at the upper end of what these compact tool lines typically advertise. At 5 pounds, it is built more like a wrench for lug nuts and larger fasteners than a driver for screws, though without a torque figure or drive size in the data, exact capability cannot be confirmed.
- Model RT1400B
- 21 volt cordless power source
- 5 pound tool weight
- 4.5 rating from 448 reviews
Who it's for
Suits buyers wanting a cordless impact tool for automotive or heavier fastening work, based on its weight class. Not the right fit for someone needing precision screw driving or a confirmed torque spec, since neither is stated here.
Strengths and trade-offs
Drawn from this product's published specifications.
- 5 pound build suggests wrench class torque capacity
- 4.5 rating across 448 reviews
- 200 units bought in the past month
- No torque figure, drive size, or battery details listed
- 21 volt marketing figures on budget tools often overstate sustained output
Performance notes
Higher weight in a cordless impact tool typically comes from a larger motor and gear housing built for sustained torque, which fits wrench class use rather than light driving. The 21 volt rating common to this style of budget tool line often reflects peak battery voltage rather than sustained working voltage, so real world torque can vary from what the number implies.
Specifications
| Brand | Robustrue |
|---|---|
| Model | RT1400B |
| Item Weight | 5 pounds |
| Voltage | 21 volts |
Other Robustrue impacts
How it compares
This product against the closest alternatives we track in impacts.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Robustrue RT1400B ImpactThis product | 4.5 / 5 | 448 | 4.0 / 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 Robustrue RT1400B
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is the Robustrue RT1400B an impact wrench or impact driver?
The listing labels it Impact and gives a 21 volt, 5 pound spec, which reads closer to a wrench class tool than a light driver, though this is not explicitly confirmed.
What voltage does the Robustrue RT1400B run on?
21 volts, per the listing attribute data.
How is the Robustrue RT1400B rated?
It holds a 4.5 out of 5 rating across 448 reviews, with about 200 bought in the past month.