GRENPRO

GRENPRO GrenPRO-071904 Drill

Drill
Battery
6 ounces
4 volts

4.1/ 5 on Amazon0Amazon ratings200+bought last month2.7ProductDome score

Limited evidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology

Best forYou need a pocket-sized cordless driver for tiny screws and light repairs

An ultra-light, low-power cordless driver for small precision tasks, not a substitute for a standard drill.

As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.

ProductDome scorecard

How it ranks among the 369 drills we track

2.7/ 5ProductDome scoreLimited evidence

Owner satisfaction · 56% of scorecategory median 4.5★4.5

4.1★ across 0 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 295 ratings0.0

0 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score3.1

200+ bought on Amazon last month.

Data quality · 11% of score3.8

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: limited - limited rating history.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

Weighing just 170 grams, the GrenPRO-071904 is a small cordless drill running on a 4V battery at 220 RPM. Its size and power point to light precision tasks rather than general construction drilling.

170 grams and 220 RPM put this closer to a handheld precision screwdriver than a jobsite drill, useful for its portability but limited in torque and speed compared to standard drills.

4 volt battery power source
220 RPM speed
170 gram tool weight
Compact precision-driver format

Who it's for

Hobbyists and anyone doing small electronics, eyewear or craft repairs who wants an ultra-light cordless driver. Not suited to drilling through wood, metal or masonry.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out

Very light at 170 grams
Cordless 4V battery power
Easy one-handed control for small tasks

What to check first

Low voltage and RPM limit it to light-duty use

Performance notes

At 4V and 220 RPM, the GrenPRO-071904 has limited torque and speed, and its 170 gram weight keeps it easy to control one-handed on small work. That combination favors precision fastening over any drilling task requiring real power.

Specifications

Brand	GRENPRO
Model	GrenPRO-071904
Power Source	Battery
Item Weight	6 ounces
Voltage	4 volts
Speed	220 rpm

How it compares

This product against the closest alternatives we track in drills.

Product	Amazon rating	Ratings	ProductDome score
GRENPRO GrenPRO-071904 DrillThis product	4.1 / 5	0	2.7 / 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

Frequently asked

Questions about the GRENPRO GrenPRO-071904

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

What can the GrenPRO-071904 be used for?

Its 4V, 220 RPM specs suit small precision fastening rather than general drilling.

How much does the GrenPRO-071904 weigh?

170 grams.

Is this a cordless tool?

Yes, it runs on a 4 volt battery.