Cudeman Survival Sharpener 645-P-E

This compact pocket tool from Cudeman combines a fine 1200-grit sharpening surface with a range of practical field and workshop features. The abrasive is designed for use on high-hardness steels, offering a smooth finish and precise edge maintenance. Its silicon–iron construction gives a robust feel while remaining lightweight for everyday carry. Alongside the sharpening surface you get an integrated 10 cm ruler, a signal mirror and basic navigation aids — a compass and a sundial — useful for simple orientation and signalling without relying on electronics. At 10 × 2.5 × 0.8 cm and 85 g, it slips into a kit or pocket and is convenient for maintenance, small measurements and emergency preparedness.