With the FIRST hit, it unscrews a bolt tightened by a Bosch GDR impact wrench at 160Nm!! The Bosch cannot unscrew the screw at the low setting of the Ingco!!!! At the high setting, it breaks on dry oak 10×120mm drywall screws for a plate!!!! Tested "breaks" at 300Nm in 3", always with the 4.0Ah battery. The car bolts now for the clueless, if they are tightened to 20000000 Nm with an air wrench instead of the 120Nm max as it should be, get a Caterpillar 800 volts??? I say this because for my bolts I put an 80cm extension on the cross otherwise the bolts wouldn't budge, no way! Powerful, fast, quality, and brushless, it seems very good VFM.... PS: The 2Ah battery "pushes" a 20-volt motor 37 watts in an hour, while the 4Ah "pushes" 74 watts (double)! This helps the motor perform better under heavy loads, where maximum Amperes are needed to cope. More energy (wh) and more power (A) due to greater capacity (Ah). The impact is both stronger and has a greater upward curve and duration! And let's not forget that we are always talking about the "small" impact wrench from Ingco, guys. 25 years as a professional (metal constructions, welding, and hydraulics) gives me the right to say that it is a good "amateur" tool and that Lidl has tasty green beans!!! For self-tapping screws again, to prevent the screws from "burning" and not "cutting," an impact wrench is recommended instead of a socket wrench and not Parkside, they burn out (I have thrown away TWO impact wrenches). The first one actually burned out on the first day at a cottage, in the middle of nowhere in Halkidiki, in February, please! There to see me, the friend who I didn't take the Bosch Pro with me, what a shame. Damn their green beans....