Allen Wrench Set

allen wrench
A hex head wrench
An L-shaped metal bar with a hexagonal head at each end, used to turn bolts and screws having hexagonal sockets
a wrench for Allen screws
A hex key (also known by various synonyms) is a tool of hexagonal cross-section used to drive bolts and screws that have a hexagonal socket in the head (internal-wrenching hexagon drive).

set
put: put into a certain place or abstract location; "Put your things here"; "Set the tray down"; "Set the dogs on the scent of the missing children"; "Place emphasis on a certain point"
a group of things of the same kind that belong together and are so used; "a set of books"; "a set of golf clubs"; "a set of teeth"
A group of people with common interests or occupations or of similar social status
A group or collection of things that belong together, resemble one another, or are usually found together
A collection of implements, containers, or other objects customarily used together for a specific purpose
fit(p): (usually followed by `to' or `for') on the point of or strongly disposed; "in no fit state to continue"; "fit to drop"; "laughing fit to burst"; "she was fit to scream"; "primed for a fight"; "we are set to go at any time"