Rapidograph No. 72D Replacement Points description:6x0 Continuous airflow without a storage

Continuous airflow without a storage tank means the D-500 runs while you spray

The 10x10 format provides substantial working area while remaining manageable on your lap or at a desk

water alone doesn't cut through dried pigment inks or stubborn residues

and developing fantastical creatures from simple starting shapes

surfaces where waxy buildup would prevent paint adhesion or create permanent marks you can't correct

Rapidograph No. 72D Replacement Points description:6x0 Continuous airflow without a storageTechnical pen work demands absolute consistency; that's where these replacement points matter. Koh I Noor engineers these . 3mm nibs from hard chrome stainless steel to maintain precise line weight through extended use with lettering devices and templates. The nib sleeve design ensures stable ink flow while protecting the delicate point during repeated contact with template edges, critical when technical accuracy depends on every line matching