bit

black

build

closeup

construction

cooling

curled

cut

cutter

drill

drilling

engineering

equipment

gray

hard

hole

industrial

industry

instrument

interior

isolated

locksmith

machine

man

manufacturing

metal

metalwork

milling

occupation

perforate

perforator

plant

power

sharp

shiny

shop

silver

single

smith

spiraled

stainless

steel

strength

technology

tool

turning

water

work

worker

workshop