EWORK Cordless Impact Wrench 1/2 inch 21V Brushless High Torque Impact Gun Max 700 Ft-lbs Power Impact Wrenches with 4.0Ah Li-ion Battery, Fast Charger, 5 Sockets, Tool Bag (RB-810)
Condition: Used - Like New
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At a glance
- Condition
- Used - Like New
- Size
- High Torque 700 Ft-lb / Pro Version
- Model
- RB-810
- Weight
- 10.63 lb
- Color
- Yellow and Black
- Material
- Nylon
- Item Length
- 6.69 in
- In the box
- (1)4.0 Ah Battery and Fast Charger(1)Brushless Impact Wrench 1/2 inch(1)Manual and Tool Bag(1)Pin and O-Ring(5)Sockets (17/19/21/22/24mm)
- Warranty
- 1 Year
Features 6
- We provide 365 days of warranty service, no repair, only replacement, to ensure your shopping experience
- This cordless impact wrench is equipped with a brushless motor, has up to 700 ft-lbs (950N.m) of max torque and 1200 ft-lbs of max breakaway torque, can switch high, medium and low three modes, Stepless speed change and reverse automatic stop function, the high torque impact wrench makes your work more efficient
- The electric impact wrench 1/2 inch is compact design, weighing only 4.32 lb (without battery), making it easy to operate in tight spaces and reduce heavy work intensity
- The impact gun is equipped with a 4.0Ah high-performance large-capacity lithium battery and a fast charger, which can ensure long-term work
- The power impact wrenches feature an LED light with a 10-second delay for improved visibility
- Complete kit contains: 1* Impact Wrench 1/2 inch, 1* 4.0 Ah Battery, 1* Fast Charger, 5* Sockets (17/19/21/22/24mm), 1* Pin and O-Ring, 1* Manual, 1* Tool bag
Specs 26
| Color | Yellow and Black |
|---|---|
| Brand | EWORK |
| Material | Nylon |
| Item Length | 6.69 Inches |
| Item Package Quantity | 1 |
| Head Style | Fixed Square |
| Finish Type | Powder Coated |
| Item Torque | 700 Foot Pounds |
| Operation Mode | Battery |
| Voltage | 21 Volts |
| Manufacturer | EWORK |
| UPC | 717717518963 |
| Part Number | RB-810 |
| Item Weight | 10.63 pounds |
| Item model number | RB-810 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Size | High Torque 700 Ft-lbs / Pro Version |
| Style | Automatic |
| Finish | Powder Coated |
| Power Source | Battery Powered |
| Type of Bulb | LED |
| Usage | Professional |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Battery Capacity | 4000 Milliamp Hours |
No specs match.
Frequently asked questions
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Took a chance... Pleasantly Surprised!
I don't normally write reviews but this is a great little find. Full featured with battery indicators torque indicator, work light, very compact and STRONG! Nice case and charger. I bought a larger set of SAE sockets to complement the metric sockets that come with it. Also bought a smaller set of 1/2" drive torqe limiters... which I consider mandatory since this little guy is so strong. Most car lug nuts torque specs range from about 75 to 140 ft/lbs. Overtightening past your specs could result in warped rotors or damaged wheel. For safety I recommend purchasing the torque limiting drive set. For example I use the 100 ft/lb limiter and then use a torque wrench to go to the 111 spec on my Scat Packs 6 piston Brembo brakes. I use the 120 for the rear specs and go from there to 130ft/lbs. I just used this to change blades on a 50" zero turn mower and it removed the bolts with ease. Used the 80ft/lb limiter to retighten to spec. I don't know how durable it is or how long it will last but I'm assuming this 520 ft/lb version should do well for home and shade tree mechanic work! Great value... Would recommend.
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Reviewed in the United States on August 15, 2024 by Bonnie P. Clegg
Power and Quality!
Size: High Torque 700 Ft-lbs / Pro Version
This is an excellent quality and powerful impact driver. Have had this tool for a month now and I am very satisfied with the performance and battery life. It's small enough to fit in some place other drivers will not and you don't sacrifice power for a smaller size. The tool is well built and durable it's nice to have the basic sockets to start with too. Comes with a very sturdy cell made bag to store it in. It's a winner and a keeper. I would not hesitate to purchase eWork quality tools again.
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Reviewed in the United States on November 17, 2023 by Sol
Very nice tool. Worth the price.
Size: High Torque 700 Ft-lbs / Pro Version
Nice and sturdy. Heavy and solidly built. Handled removing the tire bolts with ease. Nice tool for the price.
Reviewed in the United States on August 8, 2025 by Kyess
Surprisingly Powerful, Durable, and Truly “Old Reliable”
Size: High Torque 700 Ft-lbs / Pro Version
I was skeptical at first because of the low price, but this Ework 1/2-inch 21V brushless impact gun has completely impressed me. I’m restoring an old car full of rusted bolts, and this tool makes quick work of them without rounding or breaking. The torque is strong, the battery lasts, and it feels well-balanced for longer jobs. After dozens of hours of use, it’s earned the nickname “Old Reliable.” For the price, the performance and durability are outstanding. Highly recommended for anyone from DIYers to weekend mechanics.
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Reviewed in the United States on September 4, 2025 by RL in MD
Join Ework, and together you can rule the toolbox.
Size: High Torque 700 Ft-lbs / Pro Version
Indeed you are powerful, as this user had foreseen. Good work, Ework. There was no disturbance in the force of this RB-810 model as it removed the very stubborn cylinder cap from my old Craftsman 3.5-ton floor jack, using a 52mm socket I sourced from Amazon (SING F LTD; ASIN B01LY4R534). I'm rebuilding this jack and I wasted far too much time and effort in futile attempts to remove that cap, using everything from an 18" crescent wrench and hammering on its handle with a 4-lb. sledge, then using that wrench with cheater pipe (actually an old inner tie rod tool) to using my 24" GearWrench breaker bar (kit on Amazon: ASIN B08P25TX62) with that 52mm socket. No joy. Nothing would break it free, and I was putting tremendous amounts of torque on it. It had me practically pleading with it, "I feel the conflict within you. Let go of your hate for me." Wanting a cordless impact wrench anyway, I purchased this Ework 700 ft-lb model RB-810 and used it with the 52mm socket. The rebel cap was easily defeated and off in just a few seconds! You don't know the power of the Ework side. I also tried some lug nuts with the 19mm socket included in the kit and each nut was loose in about a second. Galactic level gratification right there. Reverse/break auto-stop works well to prevent spin off. There's no auto-stop in forward mode – this isn't a torque driver – and this model is powerful enough to strip threads if you aren't careful (I was, so it didn't). Not so fast, commander: The variable speed on this model is improperly implemented. It's very difficult to make fine adjustments. With a slight pull on the trigger, you get very slow speed. Pull just a tad more and you instantly get a big jump in speed. Pull a tad more and it's nearly full speed. A tad more again it's full speed. It's full speed through about the last half of trigger travel, no matter where you put the trigger in that span. Not good. I might have assumed the intent was to have a few set points for different speeds, rather than it being truly continuously variable, BUT... if you're very careful, you can get slightly different speeds at different points in trigger travel (over the first half of travel). Clearly, the intent was that it should be continuously (true) variable, so this is a hard fail in design or switch manufacturing. This may not be a deal-breaker for a lot of readers, but some might want to know how it works (or doesn't work) on this model. Speed is variable in both directions, except in auto-stop reverse mode, where it's full speed only. Brawn: This bad boy is heavy! Sure, it has a lot of plastic like everything else nowadays, but it doesn't feel cheap, yet the price is lower than competing brands with much less rated power. Build quality is good; there are no loose fasteners or anything else amiss on mine. I can't speak to its durability or longevity, as I haven't dropped it or otherwise abused it, and I haven't used it beyond what I've already described. I'll be doing a complete front end suspension rebuild soon, so If my wrench craps out prematurely, I'll update this review accordingly. Ework backs it up with a 1-year warranty. No brains (mode control design): The mode button is only available after you engage the trigger switch. No big deal, you say? Ok, how about this: pulling the trigger turns on the very bright work light LED, which blinds the user when looking at the control LEDs and trying to set mode/speed. When the work light LED is not illuminated, neither are the mode LEDs, and the control button is disabled, forcing the user to engage the trigger and get blinded by the work LED just to change settings. I have to cover the work light LED with my finger or thumb while changing speeds/modes with another finger/thumb. If you forget you have to cover it, you get blasted in the eyes like a camera flash went off in your face at close range. You get about 10 seconds before the work light goes out, which is enough time to change mode settings. But, it makes no sense that you cannot select mode/torque before engaging the trigger, when the work light LED isn't blinding you. It's annoying enough to make you want to force choke whoever is responsible for this idiotic design, and the cubicle "engineers" who obviously never used a power tool in their lives need to go back to flipping burgers or digging ditches. Driven: The included sockets seem decent quality. The finish is even and complete, there is no flashing around the pin holes, and the machining of the socket and drive pockets is good. The pin holes are properly centered. The internal walls have the typical radius corners and are machined flat. I would have preferred larger labeling – the font is tiny on the smaller sockets. The markings appear to be laser etched. Pin-up model: The kit comes with a pin and o-ring. The o-ring is sized right for the included 17mm socket, but it's a struggle getting it on the larger sockets in the kit. Ework should have included 2 sizes of o-ring. Large and in charge: The charger isn't anything out of the ordinary. It's nothing to write home about, but it does its job. The battery arrived with 1 bar on its built-in charge meter, and I haven't used the wrench long enough to run the battery down, so I can't yet report how long it takes to charge from completely empty, nor how long a full charge typically lasts. It's in the bag: The included soft bag is large enough to hold everything, which is how the kit arrives, and seems well made, but there are some things I'd change about it. It has 3 front pockets, with the middle one having a Velcro-type flap. However, the pockets aren't large enough to accommodate the charger, and there is no internal pouch to keep the charger separated from the wrench. That's begging to get things scratched up or otherwise damaged. The top is zippered and reinforced with a [presumably metal] bar surround, so it stays wide open while you dig around in the bag, which is a nice touch. The bottom is not similarly reinforced – it has a somewhat rigid liner, presumably plastic, that gives it some structural integrity. The feet are relatively hard and feature a number of pyramid gripper spikes on each foot. I guess this is meant to help keep it from sliding around on dirty or greasy surfaces. The feet seem like they could take a fair amount of abuse from dropping the loaded bag on a concrete floor, but how much abuse the wrench itself could take from doing this is anyone's guess (the bag bottom is not padded), and since there's no pouch to separate the charger from the tool, the likelihood of damage to either or both from such mishandling is increased (assuming you tend to keep your chargers and tools in their kit bags). The carrying handles have a Velcro-type strap to keep them bundled when desired. The bag is better than some I've seen, but I would have gladly paid a couple bucks more for a proper blow mold case. Verdict: The wrench has plenty of power to suit most users' needs, and the price is decent for what you get in the kit. I deducted a star because of the stupid mode control design. I should probably deduct another star because of the variable speed operation not being up to par, but the feature isn't that crucial for me with an impact wrench.
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Reviewed in the United States on September 9, 2023 by AmaZoned
N/a
Size: High Torque 700 Ft-lbs / Pro Version
Very nice product, works extremely well
Reviewed in the United States on October 30, 2025 by Russell Miller
Great buy
Size: High Torque 700 Ft-lbs / Pro Version
Great impact! Lots of power and battery lasts long. Great speed and torque, value for money and functionality. Very happy with this purchase.
Reviewed in the United States on September 20, 2025 by Migs
Excellent midrange impact driver
I intend to use it to switch my winter tires into the all season. It competes and outperforms quite a few of the competition on YouTube, while clearly beating them in price. It has 3 levels of torque settings in addition to the Auto setting when tightening, and 1 Auto setting 700Nm/516 ftlbs during removal. For car lug nuts you only need about 100 ftlbs of torque. Supplied with a nice sturdy bag with 3 front pockets, 5 sockets sizes 17mm,19mm, 21mm, 23mm, and 24mm. One 4000mAh battery with charge level light, and charger. Even comes with a couple of pins and a rubber O-ring to prevent any chance of the socket from slipping out. This I found was unnecessary due to its snug fit. But it's there for those who are extra careful. My only concern is with the charger due to its tendency to heat up, but I was informed it has auto shut-off. I would just remove the battery once the indicator light turns green from red. Overall, you can't beat the price on sale at $139, and the performance.
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Reviewed in the United States on March 29, 2023 by a1