The TW007GZ01 is a compact & cordless Impact Wrench, powered by 40V Max Li-ion XGT battery to supply energy to the powerful 40V brushless motor, with variable speed controlled by trigger to deliver up to 2, 900 ipm, 2, 300rpm, 760 Nm maximum tightening torque & 1, 100 Nm nut busting torque for a wide range of applications. The TW007GZ01 is equipped with a convenient 12;” square driving shank; socket can be fixed with a C-ring, variable 4 speeds to provide fastening control for a wide range of applications; maximum, hard, medium & soft, forward & reverse rotation, electric brake for increased operator safety & twin LED job lights to illuminate the work area. The TW007GZ01 features auto-stop system available in both forward & reverse rotation modes, trigger switch with full speed mode; variable speed mode can be changed to full speed mode by simply pushing a button, e Xtreme Protection Technology (XPT) to provide enhanced dust & water resistance & battery protection circuit designed to protect the battery from damages due to overheating, over-discharge & overload current. Maximum capacity standard bolt M10 to M24, high strength bolt (grade 10.9) M10 to M16, high strength bolt (grade F10T) M12 to M16