Efficient sharpening: performance whetstone effortlessly restores the sharpness of various hook types, including crankbait jigheads, improving penetration during bites and overall fishing efficiency. Spacesaving design for trips: flat storage profile and folding carry handle enable compact transport and maximum space utilization in your fishing gear. Efficient design for precise results: thoughtful construction ensures even grinding of the hook tip for consistent results with every throw. Wide compatibility and performance: precision sharpening tool for all hook types and sizes; ideal for freshwater, saltwater and fly fishing. Universally compatible with single hooks, treble hooks, and special hooks up to 5 cm in length. Ceramiccoated grinding surfaces deliver reliable sharpening performance. Use scenarios: Before a freshwater trip (bass, panfish): quickly sharpen worn single hooks to improve penetration and hookup rate. On a saltwater charter: maintain crankbait and treble hooks to preserve effective lure performance in larger fish environments. Field use for fly fishing: touch up small hooks on the stream to ensure precise bites and efficient penetration across different species.