Multi-Function This hex socket has a deeper sleeve for a tighter connection and is ideal for loosening and tightening hex screws and nuts. Usage Scenarios This impact driver is suitable for construction sites, woodworking, professional machine repair, etc. Applicable Tool Applicable for installation in those hexagonal tools, such as pneumatic screwdrivers, electric screwdrivers, pneumatic drills, electric drills, hand screwdrivers, etc. . 14 different sizes available with the same total length 80mm. Package Included 14 x Screwdriver socket