Caran d'Ache Technograph 3 mm leads 6-pack

The Caran d'Ache Technograph 3mm refill leads are premium replacement graphite leads for the Fixpencil 3mm clutch pencil and any standard 3mm lead holder. Each lead is formulated with high-density extra-pure refined Swiss graphite, engineered to minimize crumbling while delivering consistent, uniform line quality from first stroke to last. The extra-thick 3mm diameter provides strong break-resistance under sustained drawing pressure and produces a bolder, broader mark suited to expressive studio work, large-format drawing, and confident layout sketching.

Available in three grades covering a wide range of applications. HB is the balanced universal grade for general studio layout, product sketching, and daily note-taking. 3B is a soft, richly saturated grade that blends freely for portrait shading, tonal gradient work, and bold architectural layouts. 6B is the softest and darkest grade in the range — an ultra-expressive lead for life drawing, deep shadow coverage, gestural sketching, and dramatic value building at scale. Six leads per pack, each 120mm long.

Specifications

• Available grades: HB, 3B, 6B
• Lead diameter: 3.0 mm
• Lead length: 120 mm
• Pack contents: 6 leads
• Composition: High-density extra-pure refined Swiss graphite
• Compatibility: Caran d'Ache Fixpencil 3mm and all standard 3mm lead holders
• Packaging: Compact protective storage pack
• Origin: Swiss Made, Geneva

FAQ

• Which grade should I choose? HB suits general layout work, note-taking, and studio wireframes. 3B is the choice for portrait shading, tonal drawing, and expressive line work where blendability matters. 6B is for maximum darkness and gestural freedom — life drawing, deep shadow rendering, and large-format expressive work.
• What is the 3mm format best suited for? The 3mm diameter produces a broader, bolder mark than finer lead formats — well suited for expressive studio work, large-format drawing, and confident gestural sketching where a wider line and stronger break-resistance are the priority.
• Are these compatible with lead holders other than the Fixpencil? Yes. The 3.0mm diameter is a standard technical dimension, making these leads universally compatible with any 3mm lead holder.
• Do the softer grades crumble during use? The high-density Swiss graphite formula is specifically engineered to minimize crumbling across all grades — including the extra-soft 6B — maintaining structural integrity under normal drawing pressure.