Facom N J 1300F2 3/8" Aluminium Mini Air Impact Wrench is lightweight & fast for high productivity. There is a rugged durable twin rocking dog mechanism encased in a strong aluminium housing & a durable protective rubber ring. Your safety is looked after by the socket ring retainer & great control is provided by a feather teasing trigger for optimal speed regulation. There is an easy turning knob to adjust power & a practical one hand forward/reverse rod. It is the ideal tool for working in confined areas such as motor compartments & under body work.