TRIDENT DESEGRAPH Technical Pens are produced under the most rigorous TRIDENT quality and accuracy standards. Desegraph pens feature the revolutionary “DOUBLE DRY SEAL SYSTEM” against ink drying.

Perfect adjustments and an exclusive air feeding system with atmospheric pressure compensation to prevent in leakage, skipping or blotting.

Available with stainless points individually or in attractive sets of 3 or 7 technical pens. Replace points are interchangeable with the Rotring or Koh-I-Nor brand of technical pens at a substantial savings.