Apex Torx Plus impact sockets are manufactured using a proprietary steel and heat treat process that yields greater strength and a longer bit life. The cutting-edge machining process used to manufacture Apex Torx Plus impact sockets results in tighter tolerances, superior product consistency and a better and more consistent fit to fasteners leading to better torque transfer.Torx Plus sockets have large openings on the six corners of the opening to create a ”floating” action that allows the socket to slip quickly and easily onto the nut or bolt. Ideal for compensating for imperfect alignment between the tool and fastener. Not generally recommended for impact use. These sockets are identified with a SF- prefix.Apex Torx Plus impact sockets are recognized as the industry leader in screwdriver tooling throughout the aviation industry as well as automotive, heavy industry or anywhere quality tooling products are required. If you have invested money in quality tools, you need to know that your impact sockets will deliver the performance you require of them. Apex manufactures impact sockets for the aerospace, automotive and other industries where reliability is key. Day in and day out, you will find Apex Torx Plus impact sockets hard at work in some of the worlds busiest manufacturing facilities.