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Einhell IMPAXXO 18/450 review

A brushless wrench on a battery platform shared across a large tool range, supplied with a 4.0 Ah battery rather than bare.

The last word Bought for the platform and supplied with a battery. Ask for the torque figure.

What lands on the bench

A brushless 18 V cordless impact wrench on the Power X-Change platform, with three stages, a quick-stop function and a 4.0 Ah battery included.

The platform is the decision

Power X-Change spans garden, DIY and workshop tools. If a household already owns two or three of them, the marginal cost of this wrench is the tool alone — which changes the comparison entirely.

What is not published

A maximum torque figure, and torque per stage. Both matter for a tool bought to loosen things, and both are absent from the listing. Worth asking before ordering.

The one rule this family shares

It loosens. The final tightening of any fastener with a published value is a torque wrench’s job.

Availability

Not found on the American Amazon store, where the buy link falls back to a local search rather than to a page that does not exist.

Prices and availability are what Keepa reported on the date this page was updated; both move.

What it does, and what it misses

Strengths

  • Comes with a battery, so the price is the real price
  • Power X-Change covers garden and DIY tools as well, which spreads the platform cost
  • Quick-stop function, which halts the tool the moment the trigger is released

Compromises

  • The listing does not state a maximum torque figure
  • Three stages, but no published torque per stage
  • Heavier than the compact tools here

Specifications

PlatformPower X-Change 18 V, stated as shared across the Einhell range
MotorBrushless, stated as low-maintenance with longer runtime
ControlThree speed and torque stages, stated
FunctionQuick-stop, forward and reverse, stated
SuppliedWith one 4.0 Ah battery, stated
Amazon referenceB0FH9X8JNF
EAN4006825686005

The questions that reach us

Does the platform really matter?

It is usually the largest cost over ten years. A battery system shared with a lawnmower, a hedge trimmer and a drill is a genuine economy; a second system in the same garage is a genuine waste.

What is quick-stop for?

It stops the anvil when you release the trigger rather than letting it coast. On a fastener being driven into soft material, coasting is where the last quarter-turn of damage happens.

Our score

7.8/ 10

Bought for the platform and supplied with a battery. Ask for the torque figure.

This one’s price among garage tools

A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom. Listed is not the same as in stock — availability changes daily.

Details checked on September 4, 2026.

Who should pick this one, among garage tools

A household already using Power X-Change for garden or DIY tools.

Sources

Specifications: the manufacturer sheet for garage tools and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

The method applied to these garage tools