The OSG UNF A-Spiral Flute Threading Tap is a precision tool designed for tapping Unified National Fine threads in blind holes. Built for machinists who demand dependable performance, it delivers clean, accurate threads with extended tool life.

• Threading Type: UNF (Unified National Fine) threads designed for precise tapping in blind holes.
• Flute Design: A-Spiral flute for efficient chip evacuation and minimized clogging in restricted depths.
• Material: Powder metal construction offering exceptional wear resistance and durability in demanding cutting conditions.
• Coating: TiCN (Titanium Carbonitride) coating to increase surface hardness and reduce friction for longer tool life.
• Thread Direction: Right-hand tapping for standard clockwise thread creation.
• Standards & Size: DIN2184-1 compatibility with M3 x 48 size specification for precise insertion and threading.

This tap is engineered to deliver consistent thread quality in blind-hole applications, where chip evacuation and heat management are critical. The TiCN coating reduces wear under high-speed machining, helping maintain cutting performance while the powder metal body provides toughness and resistance to cycle-induced wear. The result is reliable tapping performance for small-diameter threads in a variety of materials, with predictable results and longer intervals between tool changes.