The ENGINEER TWB-01 is an 8pc 'long-reach' ball tip metric hex key set.
The ball end design allows operation at an 'offset' of upto 30 degrees. The tips are magnetised to aid with holding of the bolt securely during insertion / extraction.
The longer than average shafts are constructed from a heat-treated special steel alloy & are nickel plated (electroless), to yield a robust & durable tool.