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Onemana
Onemana Cordless Brushless 1/2-Inch Impact Wrench with 3-Speed Torque Setting

Onemana Cordless Brushless 1/2-Inch Impact Wrench with 3-Speed Torque Setting

Last price we saw

$69.00at Walmart, last seen Nov 3

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Our take on the Onemana Cordless Brushless 1/2-Inch Impact Wrench with 3-Speed Torque Setting

The Onemana is an 18V cordless impact wrench with a brushless motor, a 1/2-inch drive and a rated 221 ft-lb of torque. Its three-speed torque setting lets you dial power down for smaller fasteners and up for lug nuts. Brushless motors run cooler and last longer than brushed ones, and 3,000 RPM is quick for this class. It is a bare-bones tool aimed at home mechanics and light shop work rather than daily professional use.

Best forHome mechanics doing tire changes and brake jobsDIYers who already own 18V batteries
Light farm, trailer and equipment maintenance
Buyers who want brushless power on a budget
Pros
  • Brushless motor for longer life and better efficiency
  • Three-speed torque setting for control on small fasteners
  • 221 ft-lb is enough for most passenger-car lug nuts
  • 1/2-inch drive fits standard impact sockets
  • 3,000 RPM is fast for the class
Cons
  • 221 ft-lb falls short of heavy-duty truck and rusted-bolt work
  • Battery and charger may not be included; check the listing
  • Onemana is a small brand, so battery and service support are limited
  • No mention of a case or socket set
  • Torque figures from budget brands are often optimistic

Onemana Cordless Brushless 1/2-Inch Impact Wrench with 3-Speed Torque Setting prices at every store

  • WalmartCheck price at Walmart

Onemana Cordless Brushless 1/2-Inch Impact Wrench with 3-Speed Torque Setting price history

Lowest price we've seen: $69.00 on Nov 3 at Walmart. Tracked across 1 store since Nov 3.

Specifications

Power Type
Cordless
Battery Type
Lithium-ion
Maximum Torque
221 ft-lb
Chuck / Drive Size
1/2 inch chuck / drive
Voltage
18 volts
Maximum Speed
3,000 RPM

Questions and answers

Is 221 ft-lb enough for lug nuts?
Yes for most passenger cars, whose lug nuts are usually tightened to 80–100 ft-lb. It is marginal for heavy trucks and rusted fasteners, where a higher-torque wrench or a breaker bar helps.
Does it come with a battery and charger?
That depends on the listing. Many cordless tools in this class ship as bare tools, so confirm whether a battery and charger are included before buying.
What is the three-speed setting for?
It limits torque and speed so you don't over-tighten small bolts or strip threads. Use the low setting for light fasteners and the top setting for lug nuts.
What size sockets does it take?
It has a 1/2-inch square drive, so it takes standard 1/2-inch impact sockets. Use impact-rated sockets, not chrome hand sockets.
How does it compare with a brushed impact wrench?
The brushless motor should run cooler, last longer and use battery charge more efficiently. Brushed versions are usually cheaper but wear out sooner.