Vessel 220USB1U e-ASSIST Screwdriver, Higher Torque Model
Key Features
Overview
The Vessel 220USB1U e-ASSIST Screwdriver is a USB-rechargeable powered screwdriver designed for anyone doing repetitive fastening work who wants motorized speed without a full cordless driver on their bench. Model 220USB1U is the Higher Torque variant in Vessel's e-ASSIST line, built around a 6.35mm hex shank with a (+)2 Impact Ball Torsion Bit included.
The core idea behind e-ASSIST is a hybrid drive: an electric motor delivers 17.7 lbf-in (2.0 N·m) of torque at 280 rpm no-load speed for quick, repetitive tightening, and when you need more torque than the motor can safely deliver — or want to feel the final turns — you switch to manual mode and drive it like a standard ball-grip screwdriver, rated up to 88.5 lbf-in (10 N·m) by hand. That combination is the point: electric for speed, manual for control and final seating, in one tool instead of two.
Power comes from a built-in 3.6V, 800mAh lithium-ion battery that charges over any USB port using the included micro-USB cable — no proprietary dock, no swapping disposable cells. A high-brightness LED lights the work area around the bit, useful when you're driving screws into dim enclosures, panels, or cabinetry. Vessel rates the driver for fasteners up to M6.
This is a fit for electronics assembly, panel and enclosure work, furniture assembly, and any repetitive small-fastener task where a full cordless drill/driver is overkill but a plain manual screwdriver is too slow.
Electric Speed, Manual Control

Switch between the two modes without swapping tools: run the electric drive to spin a fastener down fast, then finish it by hand for a controlled final seat instead of risking a stripped head or over-torqued joint.
- 17.7 lbf-in (2.0 N·m) electric output at 280 rpm
- 88.5 lbf-in (10 N·m) manual torque, rated up to M6 fasteners
Charge It Anywhere You've Got a USB Port

No AC brick, no charging cradle to keep track of — the built-in 3.6V, 800mAh Li-ion cell tops off through the included micro-USB cable off a laptop, power bank, or any standard USB charger.
- 3.6V, 800mAh built-in Li-ion battery
- Micro-USB Type B charging cable, 1m, included
An LED Right Where You're Working

The high-brightness LED sits right at the head of the driver, throwing light exactly where the bit meets the fastener — helpful inside dim enclosures, behind panels, or under cabinets where you can't get another light source in.
- High-brightness LED at the driver head
- (+)2 Impact Ball Torsion Bit, 90mm, included
What's in the Box
- Vessel 220USB1U e-ASSIST screwdriver — 1
- Impact Ball Torsion Bit, (+)2 x 90mm — 1
- USB charging cable (Micro USB Type B, 1m) — 1
No case is specified by the manufacturer for this model.
Key Specifications
| Tip Size | Phillips (+)2 |
|---|---|
| Bit Shank Length | 90mm |
| Hex Shank | H6.35mm |
| Grip Diameter | 43mm |
| Overall Length | 140mm |
| Electric Torque | 17.7 lbf-in (2.0 N·m) |
| No-Load Speed | 280 rpm |
| Manual Torque (max) | 88.5 lbf-in (10 N·m) |
| Battery | 3.6V, 800mAh Li-ion, USB rechargeable |
| Max Fastener Size | M6 |
| Made In | Japan |
Built For
Pro Tip
Use the electric drive to run a fastener down close to seated, then finish the last quarter-turn or two by hand. The 2.0 N·m electric output is tuned for speed, not final seating torque — hand-finishing avoids stripping small fastener heads on plastic or thin sheet metal.
Tool Nut's Take
A Hybrid Driver for Repetitive Small-Fastener Work
The Vessel 220USB1U splits the difference between a manual screwdriver and a cordless driver, and does it well for the fastener sizes it's built for.
- Who it's for: Electronics techs, appliance repair, and anyone driving a lot of small-to-medium screws who wants speed without a full drill/driver.
- Why it stands out: Electric drive plus manual finish in one tool, powered by a USB-rechargeable battery instead of a proprietary dock or swappable cells.
- Worth knowing: Rated to M6 fasteners — this is a light-duty precision driver, not a replacement for a cordless impact driver on structural fasteners.
Common Questions
- What's the difference between the 220USB1U and 220USBS1U? The 220USB1U is Vessel's Higher Torque model; the 220USBS1U is the Higher Speed model in the same e-ASSIST line.
- Does the 220USB1U use a swappable battery? No — it has a built-in 3.6V, 800mAh Li-ion cell that recharges over USB via the included cable.
- What's the largest fastener this driver is rated for? Vessel rates the 220USB1U for fasteners up to M6.
- Is the Vessel 220USB1U made in Japan? Yes, per Vessel's own product listings.