Electric PSD S1 ACE Drill
- Drill
- Battery
- 5.8 ounces
- 4 volts
A lightweight, low voltage driver for small scale tasks, not a substitute for a general purpose cordless drill.
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How it ranks among the 369 drills we track
4.5★ across 308 Amazon ratings, Bayesian-smoothed toward the category average.
308 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 369 drills we track - how the scorecard works · full drills data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The PSD S1 ACE is a cordless drill built around a 4 volt battery and a 250 RPM motor, closer in scale to a precision driver than a full size drill. At 5.76 ounces it is light enough for one handed use on delicate materials.
Voltage and RPM here sit well below a standard drill or driver, which points toward light assembly or craft work rather than boring holes in wood or metal. No torque figure is listed, so buyers comparing against full size cordless drills should treat these as different categories entirely.
- Battery powered
- 4 volt motor
- 250 RPM
- 5.76 ounce weight
Who it's for
Suited to small assembly jobs, model making, jewelry work or anywhere a full size drill would be too much tool. Anyone drilling into wood, metal or masonry on a regular basis needs a higher voltage machine than this one.
Strengths and trade-offs
Drawn from this product's published specifications.
- Very light at 5.76 ounces
- Battery powered, no cord to manage
- Sized for one handed detail work
- No torque or chuck size listed
- 250 RPM limits it to light tasks
Performance notes
The listed 250 RPM and 4 volt battery place this at the low power end of the cordless drill category. Weight is under 6 ounces, so fatigue during extended handheld use should be minimal, though the tradeoff is limited driving force. No torque, chuck size or runtime figures are published.
Specifications
| Brand | Electric |
|---|---|
| Model | PSD S1 ACE |
| Power Source | Battery |
| Item Weight | 5.8 ounces |
| Voltage | 4 volts |
| Speed | 250 rpm |
Other Electric drills
How it compares
This product against the closest alternatives we track in drills.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Electric PSD S1 ACE DrillThis product | 4.5 / 5 | 308 | 4.1 / 5 |
| AVID CD316-20 DrillAVID | 4.6 / 5 | 23,200 | 4.6 / 5 |
| SKIL SD561801 DrillSkil | 4.7 / 5 | 11,399 | 4.6 / 5 |
| Hi-Spec DT30317R-CA DrillHi-Spec | 4.4 / 5 | 14,822 | 4.5 / 5 |
| Fanttik E1 Max DrillFanttik | 4.5 / 5 | 7,298 | 4.5 / 5 |
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Questions about the Electric PSD S1 ACE
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What voltage battery does the PSD S1 ACE use?
It runs on a 4 volt battery.
How fast does it spin?
The listed speed is 250 RPM.
How much does the drill weigh?
5.76 ounces.