OKI OB-25PZN Brass EDM Wire 0.25mm Diameter High Zinc Paraffin-Free P-10 Spool The OKI OB-25PZN is a high-performance brass wire designed for wire EDM applications, especially suited for machines like FANUC. Unlike the OB-PZ variant, the OB-PZN is paraffin-free, ensuring consistent wire feed and reduced residue. byJuly 5, 2026