1、[Powerful Performance] This impact wrench features brushless motor offering a maximum torsion of 406 ft lbs (550N.m), effortlessly loosening or tightening various types of bolts or nuts. 2、[Accurate Speed Control] The sensing system can accurately detect subtle pressure changes, enabling accurate speed control ranging from 0 to 3400RPM for optimal performance. 3、[Built in LED Light] The LED work light can stay illuminated for about 20 seconds after releasing the trigger, facilitating work in extremely dark or confined spaces for improved visibility. 4、[Battery Compatibility] Compatible with BL1815 BL1820 BL1530 BL1840 BL1850 BL1860 batteries (not included), providing convenience for power supply. 5、[Versatile Applications] Ideal for tasks such as car tire removal, furniture assembly, scaffolding installation, garage maintenance, and more, making it a versatile tool for various applications.