Thank you for your purchase and for joining the Kessaku family. As a member of our family, you’re entitled to our worry-free lifetime warranty against any and all manufacturing defects. Although every product in our line passes through a rigorous and careful quality inspection process, due to the hand-made nature of our products, there is always the slight possibility of imperfections. Rest assured that we’ve got you covered. Please note that this warranty does not include general wear and tear or routine maintenance, like sharpening and honing, or issues incurred through improper use.