Large, Stamped Markings – Permanently impressed into the material by a roll-stamp die and as large as possible while still being readable along the socket's curved surface Exterior and Interior Finishes – The exterior is chrome-plated and the interior is chrome-plated and supplemented with a clear coat or painted finish where needed for full coverage 6-Point Socket Opening – Provides an exact fit and maximum contact for hex fasteners Prevents Fastener Round-Off – Radiused corners prevent fastener round-off by applying force to a fastener's flat sides, rather than its corners Secure Drive Tool Engagement – Detent grooves and beveled edges provide a smooth and secure connection with the drive tool