sleeves press release 02

Scissors

“In the pantheon of household tools, one implement that you should choose”

Mechanically, scissors are a first-class, double-lever with the pivot acting as the fulcrum.  For cutting thick or heavy material, the mechanical advantage of a lever can be exploited by placing the material to be cut as close to the fulcrum as possible. For example, if the applied force (i.e., the hand) is twice as far away from the fulcrum as the cutting location (e.g., piece of paper), the force at the cutting location is twice that of the applied force at the handles.  Scissors cut materials by applying a local shear stress at the cutting location, which exceeds the material's shear strength.

“Scissors are a cut above the rest”