Mine di ricambio Rotring Polymer B 0,5 mm S0312640

Rotring Polymer Leads 0.5 B are high-polymer fine leads engineered for precision sketching and smooth writing. With a 0.5 mm diameter and B hardness, these leads balance durability and softness to produce consistent, dark lines while reducing breakage. Compatible with most 0.5 mm mechanical pencils, they serve as a reliable refill for detailed drawing, technical work, and everyday writing.

Advantages

The extra-strong polymer formula provides improved resistance to breakage and consistent laydown of graphite. The B hardness delivers darker strokes suitable for shading and clear line work. Wide compatibility with standard 0.5 mm mechanical pencils makes these leads convenient to use across different pencil brands.

Suitable for

• Technical drawing and drafting
• Sketching and shading
• Note-taking and everyday writing
• Art studies and detailed illustrations

Key specifications

• Brand: rotring
• Model / MPN: S0312640
• EAN: 4006856505528
• Lead diameter: 0.5 mm
• Hardness: B
• Type: High-polymer (polymer) fine leads

How to use

Insert a 0.5 mm lead into a compatible mechanical pencil according to the pencil manufacturer's instructions. Advance the lead gradually to avoid excessive exposure, and replace the lead when it becomes too short or worn. Store the refill container in a dry place to keep leads intact and prevent humidity-related issues.

Recommendations

For fewer breakages, advance the lead in small increments and avoid pressing excessively when drawing fine lines; use B hardness for darker strokes and shading, and swap to harder grades if finer, lighter lines are needed.