Adjustable blade tension
Kobaruto shears come with an adjustable blade tension key. This key can adjust the stiffness of the blade, making the blade looser or tighter. As a general rule the blade should open/close half way when held horizontally, opened fully and the top handle left to drop closed. If the blades get loose or are cutting less efficient all you need to do is adjust the blade tension and the will perform as new again.