Caran d'Ache Technograph 3mm Leads HB box of 6 Caran d'Ache from $13.49 $16.99 Qty. Add to Cart SKU: CD6377-350 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