PROFESSIONAL  18V 1/2” Professional cordless impact wrench
IMPAXXO 18/400 (tool only)
Article no.:4510071UPC: 772995019052
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PROFESSIONAL 18V 1/2” Professional cordless impact wrench

IMPAXXO 18/400 (tool only)

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Article no.: 4510071 UPC: 772995019052
  • Brushless motor - more power and longer runtimes
  • Very high torque for easy loosening of wheel nuts
  • Robust 1/2” external square drive mount
  • LED light to illuminate the work area
  • 3 speed settings for a perfect speed adjustment
  • Complete with 1/4” bit adapter for screw driving
  • Complete with a 3 pc. socket set for car wheel changing (17 mm, 19 mm, 21 mm)
  • The Einhell 1/2" cordless impact wrench makes effortless work
  • Recommended battery for maximum results: 2.5 Ah battery
  • Battery and charger sold separately
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Article description

The Einhell 1/2" cordless impact wrench 4510071 (Impaxxo 18/400) makes effortless work of driving in large or long screws, and unlike impact drill drivers it helps reduce strain on the user’s joints. As a member of the Power-X-Change family, all the rechargeable batteries from the high-quality system series can be used in the impact wrench. A cordless impact wrench is suitable for a whole range of jobs in the home, the workshed and especially the garage. The device is powered by the Einhell PurePOWER brushless motor. This brushless motor offers more power and a longer running time than conventional carbon brush motors. After registering online, the brushless motor comes with a 10-year warranty. Its high torque of 3,540 in/lbs makes it an easy job to release e.g. wheel nuts. Three speed settings are available for optimum adjustment of the speed. This impact wrench comes with a robust 1/2" external square drive mount, and there is also an LED Light for optimum illumination of the work area. Also included in delivery are a 1/4" bit adapter for screwdriving and a practical kit of 3 impact sockets (17, 19 and 21 mm) for changing vehicle tires. The tool does not include battery or charger. These are available separately.

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Technical details

Number of gears
3
No load speed
0 - 2,100 RPM
Impacts per minute
0 - 3,300 IPM
Tool collet (square)
1/2"
Max. torque
3,540 in/lbs
Product weight
4.4 lbs

Powerful and durable

Einhell brushless motor

The brushless motor delivers more power, extended running times and maximum service life. Unlike carbon brush motors, the brushless motor does not suffer wear and is therefore maintenance-free. Once you register online, we offer a 10-year service promise on the Brushless motor.

The image shows a graphic cross-section of a brushless electric motor. Individual components such as the circuit board, coils, and magnets are clearly visible and surrounded by a glowing blue aura.
A man inserts a bit adapter into the Einhell cordless impact wrench IMPAXXO 18/450 .

Rugged mounting including accessories

The cordless impact wrench is equipped with a robust 1/2 inch external hexagonal socket key for securely fixing the nuts. In addition, a bit adapter for screwing and a practical nut set for easy tyre replacement are included in the scope of delivery.

A finger points to the button for selecting one of the three torque settings on the cordless impact wrench IMPAXXO 18/450.

Three speed levels

With the three speed levels, the rpm speed and torque can be optimally adjusted. With the first stage, for example, smaller screws can be sensitively screwed in, while the third stage provides the necessary power for loosening wheel nuts.

Tyre exchanges made easy!

IMPAXXO 18/450 – The expert for long bolts and wheel nuts

Tyre exchanges have rarely been easier than with the Einhell cordless impact wrench IMPAXXO 18/450. With a maximum torque of 450 Nm, 800 Nm breakaway torque, the rpm speed electronics and the special impact mechanism, loosening wheel nuts and screwing in long screws are the easiest of tasks for the compact power pack. The cordless impact wrench IMPAXXO 18/450 is supplied without a battery or charging device. These are available separately.

A man uses the Einhell cordless impact wrench IMPAXXO 18/450 to change a car wheel outdoors.
Graphic: Max. number of wheel nuts per battery charge, 3,540 in/bs (400 Nm), 1 x 2,0 Ah - 55 nuts, 1 x 2,5 Ah - 70 nuts, 1 x 4,0 Ah - 110 nuts, 1 x 5,2 Ah - 140 nuts, 1 x 6,0 Ah - 170 nuts, 1 x 8,0 Ah - 220 nuts
Graphic: Max. number of wheel nuts per battery charge, 3,540 in/bs (400 Nm), 1 x 2,0 Ah - 55 nuts, 1 x 2,5 Ah - 70 nuts, 1 x 4,0 Ah - 110 nuts, 1 x 5,2 Ah - 140 nuts, 1 x 6,0 Ah - 170 nuts, 1 x 8,0 Ah - 220 nuts

Suitable accessories for IMPAXXO 18/400 (tool only)

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2.5 Ah 18V PXC Battery & charger starter kit2.5 Ah 18V PXCArticle no.: 4512131
einhell-accessory-pxc-starter-kit-4512132-productimage-001
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4.0 Ah 18V PXC Battery & charger starter kit4.0 Ah 18V PXCArticle no.: 4512132
einhell-accessory-pxc-starter-kit-4512133-productimage-001
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2 x 4.0 Ah 18V PXC Battery & charger starter kit2 x 4.0 Ah 18V PXCArticle no.: 4512133
Einhell customer service can be reached directly. We take care of your requests for product information, spare parts and repairs.We support you with all questions around your product - before, during and after the purchase.