Wera wrench double open end 10/13 Joker, Red, 167 mm

The Joker has a non-angled 12-point beak, therefore it
requires just 30° of working space, otherwise it functions
just like a regular open end wrench. The dark metal plate
dual functions as a retainer, preventing the nut to slip
through the wrench beak or it holds the nut. 30° further
the metal retainer plate allows the nut to slide through, or
grip it since the metal plate is equipped with a hardened
ragged edge. The teeth of his edge will 'bite' itself into
a rounded-off nut, loosening it where others do nothing
but slip-off. Color coded for size.
Size: 10mm/13mm.
Overall length: 167mm.