Hexagonal wrench is built in L-form from shorter drive part, longer drive part with threaded groove at distal end, and from tightening part around threaded groove

摘要

A hexagonal wrench is built in the L-form from a shorter drive part (21), a longer drive part (22) with a threaded groove (41) at a distal end, and from a tightening part (3) around the threaded groove. An outer diameter of the tightening part is larger than the maximum diameter of the longer drive part.