Apex offers a wide variety of Torx sockets. Thin wall sockets accommodate countersunk or limited clearance nut or bolt locations. Many of these sockets have a shouldered body design that can fit in tight quarters. Apex impact sockets have hex tolerances that are on average 48% tighter than DIN and 35% tighter than ANSI requirements. - All Apex impact sockets have the tightest tolerances for straightness and concentricity in the industry. Apex impact sockets are specifically designed and manufactured for high impact use and made from a tougher and more ductile alloy steel which is then heat treated for extra durability.