Cobalt Drill Bits Set

drill bits
(drill bit) drilling bit: a bit used in drilling for oil
Drill bits are cutting tools used to create cylindrical holes. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes.
(Drill Bit (Transformers)) Mini-Cons are a human-sized race and faction of power-enhancing transforming robots in the universe and its sequels, one of the assorted universes in Transformers fiction.

cobalt
The chemical element of atomic number 27, a hard silvery-white magnetic metal
Cobalt ( or ) is a hard, lustrous, gray metal, a chemical element with symbol Co and atomic number 27. Cobalt-based colors and pigments have been used since ancient times for jewelry and paints, and miners have long used the name kobold ore for some minerals.
a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
Cobalt is a parametric-based computer-aided design (CAD) and 3D modeling program that runs on both Macintosh and Microsoft Windows operating systems.

set
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
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"
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 people with common interests or occupations or of similar social status
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"