Hand Sharpening Drill Bits

drill bits
(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.
(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.

sharpening
Make or become sharp
(sharpen) make crisp or more crisp and precise; "We had to sharpen our arguments"
(sharpen) raise the pitch of (musical notes)
Improve or cause to improve
(sharpen) focus: put (an image) into focus; "Please focus the image; we cannot enjoy the movie"

hand
Operated by or held in the hand
guide or conduct or usher somewhere; "hand the elderly lady into the taxi"
A similar prehensile organ forming the end part of a limb of various mammals, such as that on all four limbs of a monkey
pass: place into the hands or custody of; "hand me the spoon, please"; "Turn the files over to me, please"; "He turned over the prisoner to his lawyers"
The end part of a person's arm beyond the wrist, including the palm, fingers, and thumb
the (prehensile) extremity of the superior limb; "he had the hands of a surgeon"; "he extended his mitt"