Urjoai Cordless Impact Wrench - 590Ft-lbs (800N.m) Brushless 1/2 inch, 3300RPM High Torque Impact Gun, 2x 4.0Ah Battery, Charger & 7 Sockets, Electric Impact Wrench for Car Home

I threw the Urjoai impact wrench into my truck as an insurance policy for roadside flats. It didn’t take long for it to earn a proper place in my garage. After a few weeks of tire rotations, suspension work, and the odd seized fastener, I have a good handle on where this tool shines—and where it comes up short.

What’s in the box and first impressions

Out of the box, you get the wrench, two 4.0Ah lithium batteries, a fast charger, a set of deep impact sockets from 14–22 mm, an assortment of driver bits and hex sockets, and a few adapters. It’s a generous package for getting started. The tool itself is compact for a 1/2-inch impact, with a body that fits nicely into tight wheel wells and undercarriage corners. Weight, at just under 4 lb with the battery, is easy to manage overhead or for extended sessions.

The build feels better than I expected in this price class. The overmold is grippy without being gummy, the trigger has a smooth pull, and the anvil has minimal play. The batteries click in with a solid latch and include a simple fuel gauge that’s accurate enough to plan around.

Power and real-world torque

Urjoai bills this as an 800 N·m (590 ft·lbs) “high torque” wrench. Ratings on budget impacts can be optimistic, so I set expectations accordingly and focused on real work.

• Lug nuts: It broke free the vast majority of passenger-vehicle lug nuts I tried, including a set torqued properly and a few that had clearly been installed with gusto. On the most stubborn, rust-bonded lugs, I needed a spritz of penetrating oil and a second hit, but it still got them. For grossly over-torqued or heavily corroded hardware, a breaker bar or heat remains the safer bet.
• Stuck fasteners: On an older SUV, it removed a cranky suspension bolt without drama. For larger, long fasteners that have seen winters, the tool’s hammering cadence is confident, and it doesn’t bog easily.
• Tightening: The wrench will absolutely overtighten if you let it. I used the low-speed setting to snug, then finished with a torque wrench. That’s the right workflow for any impact, and doubly so with one this punchy.

I won’t pretend I measured peak torque on a transducer, but judged by results, the Urjoai impact wrench sits comfortably above the “light-duty” tier and nudges into mid-torque territory. It’s enough tool for tire service, brake work, and most suspension fasteners on cars and light trucks.

Motor, speed control, and reverse stop

The brushless motor is a real advantage. It spins up quickly, feels efficient, and stays cooler under repeated use than brushed budget impacts I’ve used. Between brushless drive and reasonable mass, vibration is present (as it is with any impact) but not fatiguing.

Two speed ranges (0–1,990 and 0–3,300 RPM) plus a sensitive variable trigger cover most tasks. I used low speed for controlled snugging and high speed for loosening or fast removal. The trigger response is linear, so dialing in just the right pace is easy.

In reverse, the auto-stop feature is more useful than I expected. Once a nut breaks free, the tool briefly coasts and then halts, keeping hardware from spinning off and vanishing across the floor. It’s not foolproof—small fasteners can still eject if you keep the trigger pinned—but it saved me from a few lug-nut chases.

Battery life and charging

Runtime with the included 4.0Ah packs is solid. One battery handled a full four-wheel tire rotation, a brake caliper swap, and some miscellaneous odds and ends with charge to spare. The second battery means you can bounce between jobs without downtime. The charger brought a near-empty pack to full in about an hour in my testing, which matches the claim and keeps the workflow moving.

Heat management is acceptable. After sustained hammering on a stubborn bolt, I let the tool rest for a minute before continuing; thermal cutback never kicked in.

Ergonomics and usability

At 5.9 inches long (measured head to back), the wrench is unusually compact for a 1/2-inch drive. That made a difference working around strut towers and control arms where longer impacts are awkward. Balance with the 4.0Ah pack is slightly bottom-heavy, which I prefer for control. The grip is comfortable, and the rubberized surfaces stay secure even with gloves.

The LED work light does its job. It’s not shop-light bright, but it illuminates the socket and immediate work area well enough in wheel wells and under dashboards.

Noise is typical for an impact of this size—loud but not shrill. Ear protection is still smart when you’re running it repeatedly.

Accessories: handy, but manage your expectations

The included socket set is a welcome way to get started, but you’ll want to be selective about how you use it. Fit on the anvil is tight. On my sample, a couple of sockets required more persuasion than I like to seat and remove, especially when new. After a few on-off cycles, they loosened up a bit.

For lighter work and general lug removal, the included sockets are fine. For heavy, repeated hammering on stubborn or high-value fasteners, I reached for my trusted, thicker-walled impact sockets. That’s not unusual for bundled kits—consider the included sockets a starter set rather than shop-grade consumables.

The bit adapters and hex sockets let the tool play double-duty as an overpowered driver. It will run long timber screws and lag bolts without blinking, but it’s not a substitute for a dedicated impact driver where finesse and compact reach are paramount.

What could be better

• Socket fitment and durability: The tight fit on the anvil slows swaps, and the included sockets aren’t built for repeated abuse. A quality impact socket set pairs well with the tool.
• No fine torque control: This is normal for the category, but it bears repeating—use the low speed for snugging and finish with a torque wrench, especially on lug nuts.
• Accessory organization: I would have liked a more robust storage solution to keep the sockets and bits corralled between jobs.

Where it fits in a shop

For DIY maintenance, roadside readiness, and occasional in-garage repairs, the Urjoai impact wrench is a sweet spot. It has the muscle to free most automotive fasteners without jumping to a bulky, expensive professional unit. If you’re a full-time tech running an impact all day, every day, you’ll want a pro-tier gun and premium sockets. But for most home mechanics and weekend wrenchers, this has the right mix of power, size, and price.

Tips for best results

• Break free, then finish by hand: Use the impact to loosen or remove; for tightening, snug at low speed and finish with a torque wrench.
• Keep sockets lightly lubricated: A tiny dab of light oil on the anvil’s detent area can ease on/off with tight sockets.
• Let it hammer: If a fastener doesn’t give immediately, maintain steady pressure and let the impacts work. Bursts of 3–5 seconds are more effective (and kinder to the tool) than a continuous 20-second hold.
• Mind fastener size: This 1/2-inch impact is well suited to M8–M14 automotive fasteners and lug nuts. For small hardware, a 1/4- or 3/8-inch impact driver offers better control.

The bottom line

The Urjoai impact wrench punches above its weight. It’s compact, reasonably light, and strong enough to handle the bread-and-butter tasks in a home garage. The brushless motor, two 4.0Ah batteries, and quick charger make it easy to keep working, and the reverse auto-stop is a thoughtful quality-of-life feature. The included sockets will get you going, though I’d invest in a better set if you plan to tackle stubborn or high-stress fasteners regularly.

Recommendation: I recommend this tool for DIYers and occasional mechanics who want a capable, cordless 1/2-inch impact without paying pro-tool prices. Pair it with a quality socket set and a torque wrench, and you’ll have a reliable, portable solution for tire service, brake jobs, and general automotive work. If you’re a daily pro-user or frequently battle severely corroded fasteners, step up to a heavier-duty impact and premium accessories—but for most home shops, this Urjoai is a pragmatic, high-value choice.