carpentry: measuring and marking tools [1]

chalk line

Instrument consisting of a cord that rewinds into a case filled with chalk powder; it is used for marking straight lines.

case

Metal body housing the chalk powder and the line.

hook

Curved metal end of the cord that can be attached to an object; it also makes unwinding easier.

line

Chalk-covered cord that is pulled between two points to mark a straight line.

crank handle

Device for rewinding the line into the case containing the chalk powder.