Grooves on one side and 2V grooves on the opposite side greatly prolong the life of the grinding hook by stabilizing and guiding the edge during sharpening. This is an upgraded fishing accessory and an improved version of a hook grinder, designed to be a practical tool for anglers and outdoor users. Grinding surfaces and mesh options: Single surface with a fine mesh for precise finishing. Double surface with a 180 coarse mesh for rapid material removal or rough shaping. Two grinding surfaces with different thicknesses meet the needs of different stages of knife sharpening and hook grinding, enabling a versatile workflow. Function and purposes: Primary use: sharpening fishing hooks and maintaining knives. Suitable for use in field, boat, or workshop settings where quick edge refresh and edge shaping are required. Use scenarios: On a fishing trip: quickly refresh hooks to restore sharpness between catches without removing the hook from line setup. Camping or outdoor cooking: shape and sharpen camp knives using the coarse side for rapid material removal, then finish with the fine side. Fillet knife preparation: rough grind with the coarse surface and finetune with the fine surface for a clean edge. Compatibility and performance: Designed to support common fishing hooks and knives, offering two surfaces and mesh densities to adapt to different sharpening stages. The combination of side grooves, 2V grooves, and dual mesh surfaces provides a practical, reliable sharpening solution without excessive gear.