Supplied in a robust plastic case, this set includes an industrial quality chrome molybdenum impact driver with switchable forward and reverse screwdriver rotation. When the impact resistant handle is struck with a hammer, the downward force is converted by the impact driver's internal mechanism into a powerful high torque screwdriver rotation action. Ideal for ensuring fasteners are securely tightened and for freeing stuck fasteners. Hex drive nose pieces can be removed to allow use with 1/2" square drive impact sockets (sold separately). Features and Benefits Manufactured from resilient chrome molybdenum to boost product longevity Can also be used with impact sockets (sold separately) making it a versatile tool Drivers have the directional capabilities etched onto them to give you visibility as to which direction the driver can be used in 40 piece set is comprehensive and ensures you always have the correct piece to hand Typical Applications Automotive Maintenance and Repair