Carmex Threading Tap - Forming Tap (Roll) - UNF Supercut Tap - Powder Metal - 5/8 x 18Precision forming tap from Carmex, designed for UNF threads and built to endure high speed, high demand machining environments. This forming (roll) tap is ideal for professional machinists and production settings that require consistent, burr minimizing thread formation. Size Thread: 5 8" x 18 UNF matched to standard Unified National Fine specifications for reliable compatibility. Type: Forming (Roll) Tap with Supercut geometry creates threads by