Caran d'Ache Technograph 3mm Leads 6B box of 6 Caran d'Ache from $13.49 $16.99 Qty. Add to Cart SKU: CD6377-356 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Use these fine quality leads with the Caran d'Ache CD3-289 Mechanical lead holder. Tweet