Lefty®

With our stationery specially developed for left-handers, you will have a completely new writing experience. Adapted writing aids, rulers and various sharpeners make writing easier for you by adapting them to your hand position and movement – for more comfort and less fatigue.

Lefty® Sharpener
Lefty® Rulers

Lefty® Sharpener

Intelligent design

Our Lefty® sharpeners are specially designed for ergonomic handling by left-handed people. The pen is turned outwards with the left hand, which transmits more force and provides an even tip.

Unlike traditional right-handed sharpeners, this special design makes sharpening much easier – for fluid movements, precise results and longer-lasting pencils.

Lefty® Rulers

Left-handed people often work intuitively from right to left – that’s exactly what a left-handed ruler is designed for. The 0 is on the right side, the final number on the left, so that the natural direction of gaze and movement is optimally supported. This makes measuring and drawing smoother, more precise and simply more pleasant!

Sharpener Made in Germany

KUM stands for Made in Germany. At our location in Erlangen, we have our own production, a development department and a department for tool and mechanical engineering. Everything from a single source!

Investment in the future

Through our production in Germany, we secure jobs and promote regional value creation. We invest in training young professionals to pass on knowledge and skills.

These investments in training and the continuous development of our employees help us to grow and innovate as a company.

“Made in Germany” not only means excellent sharpeners, but also stands for economic stability and social responsibility.

KUM Dynamic Torison Action

We are the only manufacturer in the world to equip our sharpeners with a curved blade. Due to the curved blade, the edges are under constant tension and are not lifted by the pressure when sharpened. Therefore, “rebounding” or “tearing” of the pen tip can be ruled out. Furthermore, the pressure against the screw prevents it from loosening or loosening.

KUM Blades

Probably the most important component is the blade. If a blade does not work cleanly and reliably, i.e. sharpens the pencil with high precision, then the entire sharpener is worthless.

Our blades are manufactured with a measuring tolerance of 5/100 mm. Equally important is the hardening of these blades. We harden the steel with 64 HRC. For comparison and understanding: Top blades for use in the kitchen have a maximum of 53 HRC. These sub-processes are the most complicated in the production of the product. This hardness is necessary because pencil leads contain clay, which is a type of rock. Usually, metal is sanded down with stone, but the sharpener does it the other way around!

Carbon steel rusts relatively easily, so each KUM blade is protected by three careful operations:

  • Polish
  • Ultrasonic cleaning
  • Coating with oil