[(excellent brushless motor)] the 21v impact drill incorporates a powerful brushless motor, maximum torque of 120nm, more stable performance than traditional drills, less noise, longer life, and you don't have to worry about sparks. the motor is equipped with 55a overload protection, the motor automatically shuts off when overloaded, to protect the machine and your safety [(25+3 torque)] the 3-in-1 cordless screwdriver can seamlessly switch from screwing to drilling and impact drilling to meet your needs of working on a wide variety of materials such as plastic, wood, metal, hollow blocks, concrete and much more. 25-speed clutch adjustment allows for precise work, avoiding over-drilling and material damage [(2 x 4.0ah batteries)] this cordless drill is equipped with two 21v 4.0ah lithium-ion batteries, fully charged batteries can use 2 hours and charge 4 hours. the alternation between the two batteries can provide you with a longer working time, and the battery indicator panel is convenient for you to monitor the battery level in real time, so you can use it without worrying about the battery level. the battery chip has been upgraded with a built-in 60a protection card, the battery will switch to shutdown mode when overcharging, just wait for the current and voltage to drop to resume use [(2 adjustable speeds - up to 2150u/min)] low speed (0-600u/min), high torque, suitable for drilling and screwing hard materials. high speed (0-2150u/min) has lower torque but faster speed for drilling and other work on soft materials. the electric screwdriver is also equipped with a speed adjustment knob. the harder you press, the faster the speed, which allows you to precisely control the operating speed [(compact humanized design)] the user-friendliness of this brushless hammer driver is reflected in the details: (1) 13 mm self-locking metal chuck for quick bit changes. (2) equipped with auxiliary handle and non-slip rubber grips to increase the comfort and stability of the grip and provide better control. (3) built-in led light: work even in the dark. (4) exquisite blow molded tool box, easy to carry or give to friends [(high performance complete drill kit)] the cordless drill finder kit includes 3 wood bits (4 mm, 5 mm, 6 mm), 3 metal bits (4 mm, 5 mm, 6 mm), 2 hammer drills (6 mm 8 mm), 1 0 x screwdriver bits screws, 14 sockets, 1 flexible handle, 1 auxiliary handle, 2 batteries, 1 charger, and 1 instruction manual, the tool kit incorporates commonly used accessories and sizes. wide range of applications, ideal partner for diy, assembly and repair work [(friendly customer service)] sundpeypro has a professional customer service team, if you have any questions about the drill, please feel free to ask us, if there is any quality problem, we will guarantee the replacement to ensure your shopping experience note: the speed adjustment knob has two speeds, high speed and low speed. when the speed adjustment knob is switched to the low speed, h is displayed on the speed adjustment knob; when the speed adjustment knob is switched to the high speed, l is displayed on the speed adjustment knob