Durable dualside grinding design There are grooves on one side and 2V grooves on the other side, which greatly prolongs the life of the grinding hook. Versatile grinding surfaces Single surfaces with fine meshes; double surfaces with 180 coarse meshes, enabling different levels of material removal and finish. Adaptive sharpening options Two grinding surfaces with different thicknesses meet the needs of different stages of knives sharpening and hook grinding. Upgraded fishing accessory It is a very useful fishing accessory and an upgraded version of the hook grinder. Practical use scenarios On a fishing trip or boat: quickly refresh and sharpen fishing hooks and blades to maintain cutting performance during the outing. In the home workshop or kitchen: use for sharpening knives and finetuning hook edges, improving overall tool readiness. For travel or field use: dualface design offers flexible options for different sharpening tasks in compact setups.