The OSG Threading Tap UNF A-Spiral Flute is a high-performance, right-hand tapping tool designed for precise UNF threads in blind holes. Built for durability and consistent results, it’s ideal for shops needing reliable performance in tight, deep pockets.

• Thread Type: UNF (Unified National Fine) with 1/4 x 20 size for common, precision-threaded fasteners.
• Flute Design: A-Spiral flute to promote efficient chip evacuation in blind-hole applications, minimizing clogging and chatter.
• Material: Powder metal body delivering strength and wear resistance under demanding cutting conditions.
• Coating: TiCN coating increases hardness, reduces friction, and extends tool life during high-speed machining.
• Cutting Direction: Right-hand (clockwise) cut for standard tapping setups and compatible tooling.
• DIN Standard: DIN2184-1 compliance ensures consistent thread form across production runs.

This tap enables clean, accurate UNF threads in blind holes with reduced risk of chip buildup and improved longevity. The TiCN-coated, powder-metal construction supports higher speeds and longer intervals between tool changes, helping maintain throughput and precision in demanding manufacturing environments.