For extreme precision work: The ASCD 18-200 W4 AS with electronic torque setting (6 levels) prevents screw heads from shearing off Brushless motor with 30% higher efficiency and long service life 1/4 hexagon socket tool mounting for holding bits and socket wrench inserts 10% more torque in reverse running to loosen screws which are extremely tight Robust solid metal impact gear Contact guard on gearbox head Compact design 700 screw connections (M18) with one battery charge (ProCORE 4 Ah) Bit and belt holder on the side for ergonomic and flexible handling Electronic Cell Protection (ECP) protects the battery from overload, overheating and total discharge, Weight: 2.645547144 pounds, Manufacturer: Fein