【Product Features】3/8 to 1-5/16 in. with no skipped sizesLarge, stamped markings that won't wear offGrips sides of fastener head, not corners, preventing round-off 【Description】TEKTON 6-point sockets are ideal for working with hex-shaped fasteners. They're designed to grip the sides and not the corners of the fastener heads, which prevents round-off. The large, die-stamped markings are permanently impressed into the material and optimized for readability. A mirror chrome-plated finish protects against corrosion and easily wipes clean. 【Description】6-point socket opening provides an ideal, exact fit for hex-shaped fastener heads Socket geometry is designed to apply force to flat sides of fasteners and not the corners, preventing round-off Stan.