Double thinning shears are shears with teeth on both sides instead of having one straight blade. When cutting with normal thinning scissors (one blade with teeth and one straight edge on one side), there could be a visible line after they were closed. By using teeth on both blades, this line is not visible! You can turn the scissors in any direction on the way out of the section without worrying!
6" Ref. 70979 27 / SDV26