The TD003GZ01 is a cordless Impact Driver, powered by 40V Max XGT battery (not included), to supply energy to the powerful 40V brushless motor, with variable speed controlled by trigger & constant speed control to automatically apply additional power to the motor to maintain constant speed control to allow the user to operate the Impact Driver at the same speed when operated on a fully charged battery, to deliver up to 4, 100 ipm, 3, 700 rpm & 210 Nm maximum tightening torque, designed for optimum performance in continuous, heavy duty applications. The TD003GZ01 is equipped with 14;” hex shank, 4 mode selection for max, hard, medium & soft for bolts, tool-less bit change, trigger lock, reverse switch, anti-restart function & overload protection. The TD003GZ01 has an LED job light on each side with pre-glow & after-glow function. TD003GZ01 features T-Mode for thin metal only, anti-bit wobbling structure & light mode. Machine screw M4 to M8 & standard bolt M5 to M16, High strength bolt M5 to M14 & coarse thread screw 22 to 125mm.