The GEARWRENCH 87191 - 6 Piece Metric Long Ball End Hex Bit Socket Set, ranging from 4mm to 10mm, features ball ends that allow up to a 25° entry angle for improved access in tight spaces. Made from durable S2 steel, these long bits provide extra reach compared to standard length bit sockets and have hard-stamped size markings for easy identification. The set includes a socket rail for organized storage and meets or exceeds ASME specifications, ensuring reliability and high performance.