Engineered for precision threading in blind holes, the OSG UNC Spiral Flute Threading Tap delivers reliable, high-quality internal threads with every cut. Built for professionals, it combines durability and efficiency to support demanding machining tasks.

• Thread Type: UNC spiral-flute design optimized for blind-hole tapping and efficient chip evacuation.
• Material: HSS-E (high-speed steel with cobalt) for enhanced hardness and heat resistance.
• Coating: Steam oxide coating reduces friction, boosts wear resistance, and extends tool life.
• Size: No. 3 UNC with a 48 length (as listed: No. 3 x 48).
• Flute Design: Spiral flutes improve chip clearance in recessed blind holes, reducing clogging and breakage.
• Brand and Precision: OSG mastery in threading tools ensures consistent, repeatable results on critical components.

This tap is ideal for precision metalworking where clean, accurate threads in blind holes are essential. The cobalt-enhanced steel stands up to heat and wear, while the steam oxide coating provides smooth cutting action and longer service life. The spiral flute geometry accelerates chip evacuation, enabling smoother cycles and less operator intervention in challenging geometries. Use in automotive, aerospace, and general manufacturing tasks that demand dependable internal threads and reduced rework.