attentive
automated
brass
cabinet
concentration
disk
drilling
duty
engineer
focused
furniture
gear
grease
hammer
harness
hole
lathe
lever
machining
manufacture
manufacturing
measure
measurement
mechanic
mechanical
mechanism
metallurgy
oil
power
precision
process
production
profession
quality
safe
scale
shabby
steering
strong
support
switch
technical
technician
tense
turning
worker