accuracy
background
carpentry
centi
centimeter
concept
construct
construction
copyspace
cross
design
difference
distance
element
equipment
graphic
horizontal
icon
illustration
inch
industry
instrument
isolated
length
line
long
measure
measurement
measuring
metal
meter
millimeter
number
object
over
ruler
scale
set
space
steel
straight
symbol
tailor
tape
tool
unit
white
work
yellow