Cordless Impact Wrench 1/2 in Brushless 800 ft-lbs - High Torque

Our review of the Cordless Impact Wrench 1/2 in from olmlmo finds it best for professionals and serious DIYers who need dependable, high torque cordless power. The single biggest reason to consider it is the combination of a brushless motor and selectable torque stages that deliver up to 800 ft-lbs of working torque (with a claimed 1000 ft-lbs breakaway), which makes quick work of lug nuts, heavy equipment fasteners, and construction hardware while still offering reasonable battery life and portability.

Key Features

• Brushless Motor: Provides higher efficiency and longer motor life for heavy-duty use without frequent maintenance.
• Up to 800 ft-lbs Working Torque: The wrench offers strong torque for stubborn bolts and lug nuts while the claimed 1000 ft-lbs breakaway torque helps free seized fasteners.
• 2 x 5000mAh Batteries: Two high-capacity batteries with an integrated indicator extend runtime and reduce downtime on jobsites.
• 4-Speed Trigger: Four selectable output levels (450, 500, 650, 800 ft-lbs) let users match power to the task for more controlled tightening and removal.
• Built-in LED: A 10-second delay LED improves visibility in low light, making it easier to align sockets and see fasteners.
• Complete Kit: Includes four sockets (17mm, 19mm, 21mm, 24mm), a fast charger and a tool box for organized transport.

Who It's For

This impact wrench suits professional mechanics, fleet technicians, and serious DIYers who frequently work on large vehicles, heavy equipment, or construction projects and need cordless torque close to shop-grade tools. The brushless motor and high-capacity batteries make it a practical choice for long shifts where corded power is inconvenient.

Those who only perform occasional light home repairs or small woodworking projects should consider a lighter, lower-torque model to save weight and cost; similarly, if absolute highest torque is required on a daily basis, a 3/4 in air or corded impact tool may be preferred.

Pros & Cons

Pros

• High torque output and brushless motor deliver reliable performance on heavy fasteners.
• Two 5000mAh batteries and fast charger keep downtime low for extended work periods.
• Four-speed trigger gives precise control for different fastening tasks.
• Includes a practical accessory kit and tool box for immediate use and storage.

Cons

• At around 7 lbs, it is heavier than light duty wrenches and may be tiring for long overhead work.
• Breakaway torque claims of 1000 ft-lbs are helpful but users should validate on their own heavy-duty applications.

Specifications

Drive	1/2 in
Motor	Brushless
Max working torque	800 ft-lbs
Breakaway torque (claimed)	1000 ft-lbs
Batteries	2 x 5000mAh lithium
Speed settings	4 variable speed trigger (450/500/650/800 ft-lbs)
Included accessories	4 sockets (17mm,19mm,21mm,24mm), fast charger, tool box

Our Verdict

The olmlmo Cordless Impact Wrench 1/2 in is a strong value for professionals and dedicated DIYers who need near-shop torque in a portable package; its brushless motor, two large batteries, and four-speed control make it flexible and durable for demanding jobs. For those who need lighter duty portability or the absolute highest industrial torque, other specialized tools may be better, but for the price and kit contents this model represents solid utility and long runtimes.

Frequently Asked Questions

How long do the batteries typically last on a job?
Runtime varies by task, but the two 5000mAh batteries offer extended use between charges compared with single smaller packs and the included fast charger reduces downtime.

Can it handle automotive lug nuts and heavy equipment bolts?
Yes; the 800 ft-lbs working torque and brushless motor are designed to remove lug nuts and many heavy fasteners, with the claimed 1000 ft-lbs breakaway torque for stubborn bolts.

What sockets are included?
The kit includes four impact sockets: 17mm, 19mm, 21mm and 24mm, plus a tool box for storage.