KUM Pencil Sharpener

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Pencil Sharpener for more than 100 years

The pencil as we know it today was invented in the 17th century. Contrary to what the name suggests, a pencil is not made of pure graphite, but of a mixture of clay and water. The mine became very hard and knives were used to sharpen it at first. In 1919, KUM started producing cone-shaped sharpeners. Many other variants have been added over the past 100 years. We developed cosmetic sharpeners, sharpeners for left-handers, sharpeners for thick leads and many more. With our wide range of products, no pencil has to be blunt.

KUM® Dynamic Torsion Action

We are the only manufacturer in the world to equip our sharpeners with a curved blade. Due to the curved blade form, the cutting edges are under constant tension and cannot “curl-up” as a result of the ensuing pressure during sharpening. This in turn prevents rebounding or cracking of the pencil tip.

The Blade

All sharpeners are equipped with ultra hard (65 hrc) and razor sharp high carbon steel blades. These blades are harder than ball bearings or any high quality knife. This is needed because pencil leads are made of a mixture of graphite and various types of clay, which are extremely hard.

Each blade is razor-sharp. A felt sharpening wheel (similar to leather) is used as the last step in the automatic sharpening process. Note: stainless steel cannot be used because it cannot be sharpened that much.

Anspitzer für Buntstifte und Wachsmalkreiden

226 Wax T

Art. Nr. 105.05.71
 
Behälterspitzer für Wachsmalkreiden ∅12mm, formt eine runde Spitze

218 T

Art. Nr. 105.04.71

Color-Combi für Bunt- und Bleistifte ∅8mm, Color Teil formt eine runde Spitze

208

Art. Nr. 102.72.21

Doppelspitzer für ∅8+10mm, für Dreikant Stifte geeignet