Mechanical measurement tool for measuring lengths between two objects, walls or other bodies has an inner member that slides within an outer member so that a measurement can be read off from the scale on the inner member

摘要

Tool is configured as a telescopic antenna with each sliding member having a measurement scale. The outer member (3) is placed against one side of the length to be measured, while the inner member (1) is placed on the other side of the length to be measured. The desired measurement can be read off at the reading off point where the inner member is covered by the outer member.