500 JH8-500 Impact
- Impact
- Battery
- 21 volts
- 3500 rpm
A 21 volt cordless impact tool suited to general fastening work, though torque output is not listed.
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How it ranks among the 284 impacts we track
4.6★ across 75 Amazon ratings, Bayesian-smoothed toward the category average.
75 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 JH8-500 is a cordless impact tool running on a 21 volt battery, with a listed speed of 3500 RPM. The title's 500 figure lines up with the JH8-500 model number rather than a separate spec.
A 21 volt platform is common among cordless impact drivers and wrenches aimed at general fastening work, sitting above compact 12 volt tools in output. The listed 3500 RPM speed fits a general purpose impact tool, though torque figures are not provided.
- 21 volt battery power
- 3500 RPM listed speed
- Model JH8-500
- Cordless impact category
Who it's for
Fits users who want a cordless impact tool on a mid range 21 volt platform for general fastening. Not a fit for anyone who needs a confirmed torque spec before choosing between models.
Strengths and trade-offs
Drawn from this product's published specifications.
- 21 volt cordless battery power
- 3500 RPM listed speed
- Torque output is not listed
- Drive size is not specified
Performance notes
Running at 21 volts with a listed 3500 RPM speed places the JH8-500 in the general purpose range for cordless impact tools, though without a torque figure it is not possible to say how it compares to similarly voltaged competitors.
Specifications
| Brand | 500 |
|---|---|
| Model | JH8-500 |
| Power Source | Battery |
| Voltage | 21 volts |
| Speed | 3500 rpm |
How it compares
This product against the closest alternatives we track in impacts.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| 500 JH8-500 ImpactThis product | 4.6 / 5 | 75 | 3.9 / 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 500 JH8-500
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What voltage battery does the JH8-500 use?
21 volts.
What is its listed speed?
3500 RPM.
Is torque output listed for this tool?
No, torque is not among the listed specs.