accuracy
accurate
background
bolt
caliper
closeup
construction
control
device
diameter
dirty
dirty hands
engineer
engineering
equipment
fastener
gauge
hand
hardware
industrial
industry
instrument
iron
locksmithing
measure
measurement
measuring
metal
metallic
meter
micrometer
number
nut
object
part
precise
precision
ruler
scale
screw
silver
stainless
steel
technology
tool
vernier
white
work
worker
workshop