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‹ Impact Wrenches

Power X-Change 18V · Brushless Einhell Professional IMPAXXO 18/450 Brushless 1/2″ Square Impact Wrench (Body Only)

Impact Wrenches · Einhell Power X-Change 18V

Einhell Professional IMPAXXO 18/450 Brushless 1/2″ Square Impact Wrench (Body Only)

Name: Einhell Professional IMPAXXO 18/450 Brushless 1/2″ Square Impact Wrench (Body Only)
Brand: Einhell
SKU: 4510070
Availability: InStock

450Nm3-speed1.99kg bare3 years (with registration)

Einhell Professional 18V Power X-Change brushless 1/2in impact wrench. 450Nm tightening, 800Nm breakaway, 0–1000 / 1500 / 2100rpm, LED. 1.99kg bare. Body only.

Adds it to My Tools, kept on this device

Lowest price we track

£137.98at Machine Mart · + £4.99 delivery

View at Machine Mart ›

Compare retailersTotal with delivery

Machine Mart Lowest£137.98 + £4.99 delivery£142.97View ›

Tooled Up£140.95 + £5.95 delivery£146.90View ›

My Tool Shed£140.95 + £5.95 delivery£146.90View ›

Prices from UK retailer feeds, updated daily.We may earn a commission

450Nm

Max torque

800Nm

Breakaway torque

1.99kg

Weight (bare)

1/2" Square

Square drive

Where it sits among 1/2" drive impact wrenches

Scaled against the 33 impact wrenches with a 1/2" drive we list, so other sizes aren't in the mix. Not a score: bigger isn't always better for your job.

Breakaway torque800Nm

215Nm lowestEinhell TP-CW 18 Li BLhighest 2,372NmDeWalt DCF961

Max torque450Nm

145Nm lowestMakita TW141Dhighest 1,700NmMakita TW002G

Impacts per minute3,300

1,890 lowestDeWalt DCF961highest 4,000Makita TW004G

Weight (bare)1.99kg

0.8kg lightestMakita TW161Dheaviest 3.5kgDeWalt DCF961

Compare it with: + Makita DTW700 + DeWalt DCF900 + Milwaukee M18 BIW12 + Bosch Green UniversalImpactDrive 18V-350

Full specs

From Einhell's own documentation. Checked 26/09/2026. Report a spec error ›

Performance

Max torque450 Nm

Breakaway torque800 Nm

Torque settings3 settings: 200 / 280 / 450 Nm; max release torque 800 Nm

Speed settings3

No-load speed0–1000 / 1500 / 2100

Impacts per minute3,300

MotorBrushless

Impact mechanismStandard

Voltage18V

Square drive1/2" Square

Physical & Build

Weight (bare)1.99 kg

Weight (with battery)2.58 kg

LED work light✓ Yes

Noise level77.3 dB(A) LpA / 88.3 dB(A) LwA

Vibration3.4 m/s²

The verdictOur take

The IMPAXXO 18/450 gives 450Nm tightening and 800Nm breakaway over three settings, at 1.99kg. Some retailers list it as the IMPAXXO 18/400.

Powered by Einhell Power X-Change 18V · 10

All 10 batteries that fit this tool, smallest first. Kits and chargers ›

4511395 2.0Ah · 36Wh 0.4kg 2.39kg from £19.95at Tooled Up + £6.95 delivery View at Tooled Up ›

4511516 2.5Ah · 45Wh 0.46kg 2.45kg from £24.95at Tooled Up + £6.95 delivery View at Tooled Up ›

4511501 3.0Ah · 54Wh 0.58kg 2.57kg from £43.95at Tooled Up + £6.95 delivery View at Tooled Up ›

4511618 3.0Ah · 54Wh 0.59kg 2.58kg from £41.99at Machine Mart + £4.99 delivery View at Machine Mart ›

4511553 4.0Ah · 72Wh 0.59kg 2.58kg No retailer price yet About this battery ›

4511627 4.0Ah · 72Wh 0.6kg 2.59kg from £49.98at Machine Mart + £4.99 delivery View at Machine Mart ›

4511396 4.0Ah · 72Wh 0.67kg 2.66kg from £36.95at Tooled Up + £6.95 delivery View at Tooled Up ›

4511437 5.2Ah · 94Wh 0.89kg 2.88kg from £49.95at Tooled Up + £6.95 delivery View at Tooled Up ›

Tool weight worked out by adding each pack's weight to the bare tool, using the makers' figures. The maker's own with-battery figure can differ slightly. We may earn a commission on retailer links.

Warranty · 3yr

Up to 3 years2 years as standard, 3 once you register it with Einhell

Register in MyEinhell within 30 days of purchase for 3 years. Power X-Change batteries also get 3 years when registered, and brushless motors get 10 years on the motor. Classic and Expert tools are not covered for trade or commercial use; Professional tools are.

Warranty terms are set by the maker and can change. Always confirm current cover on their site before you buy.