65 16 Gauge stainless steel needle is (0.065" OD × 0.047" ID, 3/4" long) engineered for thick formulations—glues, cements, glazes, epoxies, and heavy greases.
25 is 23 gauge stainless steel needle (0.025" OD × 0.013" ID) engineered for controlled application of acrylic cement, mid-viscosity oils, gun oil, and specialty adhesives like Weld-on 3.
