abrasive

accuracy

action

blade

circle

circular

construction

detail

diamond

disk

engineer

engineering

equipment

factory

foundry

grinder

grinding

grindstone

hand

industrial

industry

iron

machine

male

man

manual

manufacture

manufacturing

master

mechanic

metal

old

operation

pan

people

person

power

production

rotation

sparkles

speed

steel

technology

tool

water

wheel

work

worker

workplace

workshop