Pentel 40 Ain Stein C275 Mechanical Pencil Leads 3B 0.5 mm - Black

The Pentel Ain Stein C275 mechanical pencil leads are engineered for professionals and enthusiasts who demand precision, smoothness, and durability. With a high-purity graphite core and a unique ceramic frame structure, these 0.5 mm leads deliver exceptionally dark, consistent lines while resisting breakage. Each tube contains 40 leads, making them ideal for extended use in writing, technical drawing, and sketching.

Advantages

Experience a writing and drawing performance that sets the standard. The Ain Stein technology combines a ceramic frame with high-purity graphite, resulting in leads that are up to 30% stronger than conventional leads. This means fewer interruptions from breakage, even under heavy pressure. The smooth, dark lines are easy to erase cleanly, leaving no smudges or ghosting. Perfect for detailed work where precision matters.

Suitable for

• General writing and note-taking
• Technical drawing and drafting
• Artistic sketching and shading
• Students, architects, engineers, and artists

Key specifications

• Lead Diameter: 0.5 mm
• Lead Hardness: 3B
• Quantity per Tube: 40 leads
• Lead Length: 60 mm
• Lead Material: High-purity Graphite with Ceramic Frame
• Lead Color: Black
• Packaging: Dispenser Tube (Plastic)
• Compatibility: All standard 0.5 mm mechanical pencils
• Country of Origin: Japan

Recommendations

For optimal performance, pair these leads with a quality mechanical pencil such as the Pentel GraphGear 1000 or Pentel P205. Store in a cool, dry place to maintain lead integrity. Ideal for daily use in office, school, or studio environments.