GRENPRO 4V Electric Screwdriver Set 29 Piece
- Maximum Chuck Size: 6 Millimeters
- Power Source: Battery
- Torque: 44 in-lb
- Speed: 250 RPM
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B0F385YXZ6Model: 071912Category: Drills
Overview
GRENPRO 071912 - a drill.
At 4 volts and 250 RPM, this sits well below standard cordless drill power, closer to a small precision driver for light tasks such as electronics, hobby work or delicate assembly rather than construction drilling.
- 4-volt battery powered drill
- 250 RPM rated speed
Who it's for
Fits hobbyists and light-duty users needing a low-speed, low-power driver for small screws and delicate work. Not suited to anyone needing a drill for wood, metal or masonry, where higher voltage and RPM are needed.
Pros and cons
- Low-speed control at 250 RPM
- 4-volt power limits it to light-duty tasks
- Not suited to standard drilling work
Performance notes
A 250 RPM top speed on a 4-volt system is far below typical cordless drill output, pointing to a tool built for control at low speed rather than drilling power. That makes it better matched to small fasteners than to boring holes.
Specifications
| Brand | GRENPRO |
|---|---|
| Model | 071912 |
| Dimensions & fit | |
| Maximum Chuck Size | 6 Millimeters |
| Capacity & performance | |
| Speed | 250 RPM |
| Power & efficiency | |
| Power Source | Battery |
| Battery Type | Lithium Ion |
| Voltage | 4 voltslower than 83% of 255 drills |
| Construction & materials | |
| Material Type | Metal, Plastic |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Torque | 44 in-lblower than 73% of 154 drills |
| Number Of Batteries | 1 |
| Recommended Uses For Product | Home DIY Projects, Electronics & Appliance Repair, Furniture Assembly, Workshop & Craft Projects, Auto & Vehicle Maintenance |
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Frequently asked questions
What voltage does the GRENPRO GrenPRO-071912 use?
It runs on a 4-volt battery system.
How fast does it spin?
It is rated at 250 RPM.
Is the GRENPRO GrenPRO-071912 suited to heavy drilling?
No, its low voltage and RPM point to light-duty, precision use rather than heavy drilling.