I am now simply appalled, the low-cost air impact screwdriver from ALDI beats a supposed electric/battery brand device with super impact. Solving moment ALDI device 320 N/m, E device 450 N/m. The E device does not get a countered M10 SW 17 hummed by hand, the ALDI does not even beat, and the mother is off. The test was 3X, because then the boiler pressure was only at 8 bar, normal would be 6.3 bar. The battery from the E device was fully charged, and the compressor pressure stood at 10 bar, but even at 8 bar he beat the mother out almost without a hit. Neighbor said that the air impact screwdriver runs at 10,000 rpm, the E-stroke screwdriver only at 3,000 rpm, plus the slightly too high boiler pressure, which apparently provides much more energy. These are purely private experiments, in the workshop only quality tool is used, so does not tear me apart. If no one knows what tests, one should also think about that. the ALDI impact wrench I had some time ago revised internally, was totally glued with a sticky overseas adhesive oil against corrosion, and the impact wrench even completely ungreased/dry installed. Didn’t stand in the brew instruction that you have to degrease and oil the first time before use (air motor), and lubricate (stroke). After that full or even superior performance of the device. Conclusion: The E impact wrench is under busy observation, but its impact werk is techn. super, unfortunately without driving force, compressed air has a lot more energy.