
The upper shear blade is the pointed part of the scissors (where the screw head and the trademark is visible). The lower shear blade is the corresponding lower part of the scissors. Both parts are connected by a screw (technical expression: stud).
In order to cut well, the scissor blades must be formed and fitted that the cutting edges remain in contact when the scissors are closed. When cutting and closing they should only touch each other at one point.
Because whatever needs cutting must not press the scissor blades apart, both blades are bent slightly against each other (draw) and turned (twist). The special finish of the inner surfaces of the blades (inner side) supports this action by its special shape.
The upper and lower shear blades of high-quality scissors are being manufactured with great care and then precisely joined.
All scissors and shears by ZWILLING J.A. HENCKELS are so well manufactured that, when the scissors are closed, the blades sit together tightly from the point to the joint area. A fine hollowground and an even crescent give the scissors its smooth action.
The joint area connects both blades with the screw. The crescent over which both shear blades run, sits exactly in what is called the between. The exact form of the crescent and the precise assembly of upper and lower shear blades ensure the easy closing action of the scissors. Scissors and shears by ZWILLING J.A. HENCKELS can be operated effortlessly and evenly. They have the so called smooth action.