Champ Drill Grinder

grinder
mill: machinery that processes materials by grinding or crushing
A molar tooth
A machine used for grinding something
A person employed to grind cutlery, tools, or cereals
bomber: a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States
molar: grinding tooth with a broad crown; located behind the premolars

champ
chafe at the bit, like horses
A champion
champion: someone who has won first place in a competition
chomp: chew noisily; "The boy chomped his sandwich"

drill
bore: make a hole, especially with a pointed power or hand tool; "don't drill here, there's a gas pipe"; "drill a hole into the wall"; "drill for oil"; "carpenter bees are boring holes into the wall"
a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
similar to the mandrill but smaller and less brightly colored