1/4 X 1/4 HEX 1 PIECE SOCKET BIT A1PXYS8A | eBaydiy Tools

At 19mm tall, the one-piece design for access in the tightest areas
Most compact one piece fractional hex socket bit on the market
Coating, gold in color, is titanium nitride equivalent to 82 HRC at the surface
Hard coating increases tool life and helps protect the tool from rust
The low profile and dual drive system is perfect for hard to reach applications or everyday use
Intended for hand use only, do not use with impact wrenches or other power equipment