Propelling or mechanical pencilsPropelling pencils or mechanical pencils are the further development of wood pencils, as there is no need to sharpen the pencil any more as it has a replaceable and mechanically extendable solid pigment core called a "lead" often made of graphite and clay that is not bonded to the outer casing, and therefore can be mechanically extended as its point is worn away. Mechanical pencils are used to provide lines of constant width without sharpening in technical drawing and in quick, neat writing. Mechanical pencils provide lines of constant width without sharpening in technical drawing and in quick, neat writing. They are also well loved for use for fine-art drawing and are popular with students, since they do not have to be sharpened. Mechanical pencils were first used in the 18th century, with many designs patented in the 19th and 20th centuries.
Mechanical pencils can be divided into two basic types: those that both hold the pencil lead and can actively propel it forward, and those that only hold the lead in position.There are two different ways to transport the pencil lead, either by pressing the push button on the top of the pen or by twisting a screw button, which moves a slider down the barrel of the pencil and thereby transporting the lead.
For high-quality mechanical pencils, the mine strength is between 0.5 mm and 1.4 mm. The optimal matching mechanical pencil can be found next to the design, based on the following factors:
- your hand size li>
- weight preference li>
- lead strength li>
All three factors are the result of our many years of experience selling writing instruments.
Pelikan Souverän D600 Drehbleistift
275,00 €220,00 €
Pelikan Souverän D800 Drehbleistift