Folding metre stop

The size lock or stop on the folding metre is a device that allows you to fix the desired size on the folding metre and move it to the desired position, as well as to re-mark the desired distance in different places. It is easily slipped onto the folding metre, and once the lever is tightened, it allows you to lock the position of the ruler. This turns an ordinary folding metre into an effective tool for marking or limiting depth when working.