Mechanical pencil lead refill Faber-Castell Polymer 0.5 mm HB (mpn 521500 FC)

Faber-Castell Polymer 0.5 mm HB mechanical pencil lead refill supplies consistent HB-grade graphite in a 0.5 mm diameter for everyday writing, sketching and technical drawing. The polymer-enhanced composition provides smooth, even lines with greater resistance to breakage than conventional leads, making it suitable for a wide range of mechanical pencils that accept 0.5 mm refills. The product is designed to deliver uniform darkness and reliable performance during note-taking, drafting and general-purpose use.

Advantages

The polymer formulation reduces lead crumbling and breakage while maintaining consistent HB darkness for legible writing and clear sketches. The 0.5 mm diameter strikes a balance between fine detail and durability, producing precise lines for technical tasks and comfortable strokes for everyday handwriting. Compatibility with standard 0.5 mm mechanical pencils ensures easy replacement and steady feed during prolonged use.

Suitable for

• Everyday note-taking and schoolwork
• Sketching and preliminary drawings
• Technical drawing and drafting where fine lines are required
• Office use for annotations, forms and documents

Key specifications

• Core diameter: 0.5 mm
• Hardness/grade: HB (medium hardness)
• Material: polymer-enhanced graphite
• Intended use: mechanical pencils requiring 0.5 mm leads

How to use

Open the refill container and insert the required number of leads into the mechanical pencil according to the pencil manufacturer’s instructions. Advance the tip gradually while writing; for technical drawing use a steady hand and light pressure to preserve tip integrity. Replace leads before they become too short to feed reliably, and store remaining refills in the original container to protect them from dust and breakage.

Usage recommendations

For best results, use in mechanical pencils specified for 0.5 mm leads and apply moderate pressure while writing or drawing. If sharper lines are needed, use a light touch; for darker marks, increase pressure slightly but avoid excessive force to prevent breakage. Store refills in a dry place and handle gently to maintain lead quality.