Laser Tools says it has now solved another problem – a fastener buried deep in the engine bay. It may be a pulley securing nut, a water pump mounting bolt or an A/C compressor adjustor. A user may just be able to get a spanner on, but there’s definitely no room for a ratchet handle to remove the fastener quickly.
via New extension ratchet removes the parts other tools cannot reach | Fastener + Fixing Technology.