A perfect angle for precision

The KUM long-cone sharpeners are very popular with artists, designers and architects. The unique design of the knives creates an exceptionally sharp angle when sharpening the pencil, resulting in an extremely long, fine tip. This precision allows for the effortless drawing of tiny details and intricate lines, making it the ideal tool for art, sketching, and technical drawing.

Unsurpassed craftsmanship – Made in Germany

KUM sharpeners stand as a hallmark of superior German engineering. Crafted with precision, these sharpeners are made for discerning artists and professionals who demand the best. Equipped with razor-sharp, ultra-hard steel blades (65 HRC), KUM sharpeners offer unparalleled performance. These blades are harder than even the finest knives, making them ideal for the sharpening of pencil leads, which consist of graphite and clay – a combination that can be incredibly tough to work with.

Dynamic Torsion Action – Innovating sharpening technology

KUM is the only manufacturer globally to equip its sharpeners with a uniquely curved blade. This innovative design ensures that the cutting edges remain under constant tension, preventing them from curling or bending under the pressure during sharpening. As a result, the pencil tip remains intact, preventing any unwanted cracking or splintering. Additionally, the pressure against the screw-head prevents it from lifting or loosening, ensuring the sharpener’s longevity and consistent performance.

Precision sharpening with magnesium

To achieve the utmost pre-cision, KUM sharpeners are produced using magnesium, a material known for its exceptional ability to hold tight tolerances. This guarantees a flawless sharpening result every time. Magnesium’s lightness and strength make it the perfect material for manufacturing high-precision tools, allow-ing KUM sharpeners to achieve the level of quality that artists and professionals expect.