機器
black
blade
closeup
concept
craft
cut
cutting
device
electric
emery
equipment
fabric
fabrication
form
friction
grind
grinder
grinding
grindstone
heavy
industrial
industry
iron
knife
machinery
manufacture
manufacturing
master
metal
power
process
production
profession
professional
sandpaper
sharpen
sharpener
sharpening
sparkle
sparks
steel
stone
table
tool
tradition
traditional
whetstone
work
workshop