Precision threading tap designed for blind-hole BSW applications, built with HSS-E cobalt for durability and heat resistance, and finished with a Steam Oxide coating to extend tool life.

• Thread type: BSW (British Standard Whitworth) threading for 1 x 8 size, optimized for accurate British-style threads
• Material: HSS‑E (high‑speed steel with cobalt) for enhanced hardness and wear resistance during demanding cuts
• Coating: Steam Oxide coating to reduce friction, improve wear resistance, and aid chip control
• Flute design: Spiral flute geometry engineered for efficient chip evacuation in blind holes, helping prevent clogging and heat buildup
• Application: Ideal for threading in blind-hole situations across steel, cast iron, and alloy metals
• Size: 1 x 8 (diameter x thread pitch), suitable for precise, repeatable results
• Technology: Leverages OSG’s advanced threading technology for consistently high-quality, accurate threads and extended tool life

This OSG threading tap is crafted for professionals who need dependable performance in tight, hard-to-reach pockets. The combination of HSS‑E, Steam Oxide coating, and the spiral flute design delivers clean, accurate threads with reduced risk of tool wear, making it a reliable choice for critical machining tasks and routine blind-hole work alike.