The Makita DTD157 LXT Impact Driver has a powerful brushless motor and electronic 2-speed impact power selection. Variable speed is controlled via a trigger. It also has an assist mode for controlled screwdriving. Fitted with an ergonomically designed high comfort grip. There is also an electric brake and an LED job light. The DTD157 cordless impact driver features high operation efficiency with a 140 Nm max torque and brushless motor. It's ¼” hex chuck accepts M5 – M12 standard bolts and M4 – M8 machine screws, making it ideal for repetitive screwdriving. Features eXtreme Protection Technology (XPT) offers maximum protection against dust, debris and liquids for optimal performance in extreme conditions Compact housing sizes around the motor allow for easy screwdriving .