The OSG UNC A-Spiral Flute Tap is a high-performance threading tool designed for tapping UNC (Unified National Coarse) threads in blind holes, delivering durable, precise results for metalworking applications.

• Material: Powder metal construction for rugged durability and wear resistance in demanding tapping operations.
• Coating: TiCN coating increases surface hardness and reduces friction, extending tool life and enabling higher cutting speeds.
• Flute Design: A-Spiral flute facilitates efficient chip removal in blind holes, minimizing clogging and ensuring smoother threads.
• Thread Type: UNC A (Unified National Coarse) threads for versatile, standard-purpose tapping.
• Orientation: Right-hand orientation suitable for conventional clockwise tapping processes.
• Size: 3/8 in diameter with 16 threads per inch (3/8 x 16 UNC).
• Application: Optimized for blind-hole threading to produce clean, accurate threads with reduced breakout risk.
• Standards: DIN 2184-1 compliant, aligning with common machining setups and tooling inventories.

Designed to balance durability and precision, this tap helps machinists create accurate UNC threads in blind holes with repeatable results. The TiCN coating minimizes wear and heat buildup, supporting longer tool life and consistent performance at higher speeds. The spiral flute aids chip evacuation in confined blind-hole spaces, reducing binding and improving surface finish, while the powder metal body provides toughness under demanding tapping conditions. Ideal for production runs, prototyping, or repair work in metalworking shops where reliable thread quality matters.