121955 Here

Components for fencing or mailboxes, such as the Architectural Mailboxes In-Ground Post , which require "deep" setting in concrete for stability. Product Details: Ombra 121955 Bit Socket

The phrase "" does not appear to be a standard technical name for this tool. However, in the context of hardware and construction, it often describes: 121955

Tools like the 121955 are "deep" or "long" (100mm) to reach recessed bolts. Components for fencing or mailboxes, such as the

This specific tool is widely available from automotive and tool retailers: Components for fencing or mailboxes