Mechanical pencil core HB 0.5 mm ,0.7 mm (100% recycled)

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Mechanical pencil core HB  0.5 mm , 0.7 mm (100% recycled)

Technical Parameter

Details

Material

100% recycled materials, both for the graphite part of the core and any binder materials used, emphasizing environmental friendliness.

Core Grade

HB, offering a good balance between hardness and blackness, suitable for general writing, light sketching, and note - taking.

Core Diameter

0.7 mm, which is a common diameter for mechanical pencils. This diameter provides a relatively thick line compared to thinner cores, and may be preferred for legibility in writing or for bolder drawing strokes.

Graphite Composition

Made from recycled graphite, the composition impacts the smoothness of writing. A well - formulated recycled graphite core should write smoothly without skipping or breaking.

Binder Material

If applicable, the recycled binder holds the graphite particles together. The quality of the binder affects the integrity of the core, preventing it from crumbling easily.

Break Resistance

How well the core resists breaking under normal writing pressure. A high break resistance is desirable, especially for mechanical pencils where the core is extended and used in a more exposed way.

Darkness of Mark

Since it's an HB core, it should produce a mark with a medium - dark shade. The darkness should be consistent throughout the use of the core.

Smoothness of Writing

Recycled cores should provide a smooth writing experience, allowing for easy movement of the pencil across paper without dragging or catching.