The best impact wrenches 2026
We compare real cordless impact wrenches from MercadoLibre Argentina by torque, drive size and battery, for removing nuts without wrecking your back.
Prices verified on July 24, 2026 · How we do it
How we chose: We analyzed 8 real products on the market · MercadoLibre Argentina
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Quick verdict
For most people the 20V, 400 Nm Logus is the best buy: it has the torque needed for wheel nuts and comes with sockets included, which aren't cheap separately. To spend less, the brushless Bramer impact driver with two batteries; and for a brand-name brushless motor, the Total.
What to look for before buying
- Torque (Nm): what decides whether it works — It's the number that decides whether you beat the nut or not. Car wheel nuts are typically tightened to around 110 Nm, but one that's been on for years with rust needs considerably more to break free. That's why 400 Nm, which looks excessive, is this category's standard: it isn't for tightening, it's for loosening what's seized.
- Impact wrench or impact driver — They get confused constantly and they're not the same. An impact wrench has a square drive, generally 1/2 inch, and takes sockets: it's for nuts and bolts. An impact driver has a 1/4 inch hex drive and takes bits: it's for long screws in wood and lag bolts. If your goal is changing a wheel, you need the wrench, not the driver.
- Drive size: 1/2 or 1/4 inch — The 1/2 inch square is the impact wrench standard and what common wheel sockets fit. The 3/8 is smaller, for lighter work. Also check the sockets are impact-rated — black, chrome molybdenum steel — and not ordinary chrome sockets: those can shatter under hammering and fly off.
- Brushless motor — On a tool that works by hammering and draws heavy current, a brushless motor makes more difference than on an ordinary drill: no brushes to burn out, more torque per charge and considerably less heat in sustained use. If you'll use it regularly, it's the spec that most justifies the price difference.
- Batteries included and voltage — 18V or 20V is the standard for real torque. And check how many batteries are included: an impact wrench draws heavily, so with a single battery the job stops. A practical detail: if you already own another cordless tool, buying the same brand lets you share batteries and charger, which is a significant share of the cost.
Our recommendations
Llave De Impacto Logus 20v 400nm Tubos Batería Y Carga Azul
20V and 400 Nm with sockets and battery included: you arrive with everything needed to remove wheel nuts from day one, without adding accessories separately.
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Atornillador Impacto Inalámbrico Bramer Brushless 2 Baterías Recargables
A brushless impact driver with two batteries, the cheapest in the group. Ideal for long screws and lag bolts, not for wheel nuts.
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Llave De Impacto Inalámbrica Brushless 1/2 PuLG 400Nm Total Potencia y Rendimiento Profesional Con Cargador, Baterías, Maletín y Accesorios
A brushless motor with 1/2 inch drive and 400 Nm, from a brand established in professional tools. The durability step up if you'll use it regularly.
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Llave De Impacto Inalámbrica Ingco 400nm Cosli23048-4 Color Naranja Y Negro
A 400 Nm cordless from Ingco, a direct alternative if you prefer this brand or want availability, with the same torque capacity.
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Kit Inalámbrico Total sin Carbones Llave Impacto 1/2'' 400nm y Atornillador con Percutor 66nm con 2 Baterías 2.0ah Litioion Cargador Maletín Dados y Punta Tckli20275
A brushless kit combining a 1/2 inch impact wrench and a driver: it solves both tools in the category sharing batteries and charger.
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Side-by-side comparison
| Product | Price | Installments | Rating | Where |
|---|---|---|---|---|
| Llave De Impacto Logus 20v 400nm Tubos Batería Y Carga Azul | $ 161.020 | 12 | — | MercadoLibre |
| Atornillador Impacto Inalámbrico Bramer Brushless 2 Baterías Recargables | $ 95.410 | 12 | — | MercadoLibre |
| Llave De Impacto Inalámbrica Brushless 1/2 PuLG 400Nm Total Potencia y Rendimiento Profesional Con Cargador, Baterías, Maletín y Accesorios | $ 219.220 | 12 | — | MercadoLibre |
| Llave De Impacto Inalámbrica Ingco 400nm Cosli23048-4 Color Naranja Y Negro | $ 230.000 | 12 | — | MercadoLibre |
| Kit Inalámbrico Total sin Carbones Llave Impacto 1/2'' 400nm y Atornillador con Percutor 66nm con 2 Baterías 2.0ah Litioion Cargador Maletín Dados y Punta Tckli20275 | $ 247.523 | 12 | — | MercadoLibre |
An impact wrench turns removing a wheel nut from a five-minute fight with a wheel brace into a three-second job. And cordless ones now cost a fraction of what they used to.
What to look for
- 400 Nm of torque: it looks excessive and isn’t. It isn’t for tightening, it’s for loosening what’s seized after years of rust.
- 1/2 inch drive: the standard, what common wheel sockets fit.
- Brushless motor: on a hammering tool the difference shows more than on a drill.
- How many batteries: it draws heavily, with one battery the job stops.
Wrench ≠ impact driver
It’s this category’s most expensive confusion:
| Impact wrench | Impact driver | |
|---|---|---|
| Drive | 1/2” square | 1/4” hex |
| Takes | Sockets | Bits |
| For | Nuts and bolts | Screws and lag bolts |
| Torque | Far more | Less, more control |
If your goal is changing a wheel, you need the wrench.
Our pick
For most people the 20V, 400 Nm Logus is the complete buy: it comes with sockets and a battery, so it works from day one. To spend less on woodwork, the brushless Bramer with two batteries. And if you’ll use it regularly, the Total brushless.
Two warnings that matter
Use impact sockets, the black chrome molybdenum ones. An ordinary chrome socket can shatter under the hammering and fly off.
And to tighten back up, don’t use the wrench at full power. Tighten by hand with a torque wrench to the value in the car’s manual: over-torquing stretches the studs and warps the brake disc. The impact wrench is for loosening.
Prices come from MercadoLibre Argentina and update daily.
Frequently asked
Will it remove car wheel nuts?
Yes, and it's the main reason people buy one. Wheel nuts are tightened to around 110 Nm from the factory, so any of these 400 Nm wrenches has plenty of margin even with rusted nuts or ones over-tightened at a tyre shop. Two important warnings: always use impact sockets, the black chrome molybdenum ones, because an ordinary chrome socket can shatter under the hammering. And to tighten back up, don't use the wrench at full power: tighten by hand with a torque wrench to the value in the car's manual, because over-torquing stretches the studs and warps the brake disc.
What's the difference from an impact driver?
It's the category's most common confusion and it makes many people buy the wrong thing. An impact wrench has a square drive, almost always 1/2 inch, and works with sockets: it's designed for nuts and bolts and delivers far more torque. An impact driver has a 1/4 inch hex drive and works with driver bits: it's for long screws, lag bolts and woodwork, with considerably less torque but more control. If you'll touch wheels or mechanics, you need the wrench; if you're building a deck or a timber structure, the driver.
How much torque do I actually need?
For home automotive use, 300 to 400 Nm is right and it's what practically this whole category offers. It looks enormous next to the 110 Nm a wheel nut is tightened to, but that gap is exactly the point: loosening a nut that's been on for years, with rust and dirt, takes considerably more force than was used to tighten it. If you'll also work on suspension bolts or heavier mechanics, the extra margin is welcome. Below 250 Nm the tool starts falling short exactly when you need it most.
Are prices and stock up to date?
Yes: we take real price and availability from MercadoLibre Argentina and refresh them daily. They can change at any time; the link always takes you to the current offer.
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