The OSG BSW Spiral Flute Threading Tap (HSS-E with steam oxide coating) is a high-performance tool designed for blind-hole threading. Built for machinists and job shops, it delivers precise, durable threads and extended tool life in demanding metalworking tasks.

• Thread type: BSW spiral-flute threading tap optimized for blind holes, promoting efficient chip evacuation and minimizing chip buildup.
• Material: HSS-E (high-speed steel with cobalt) for outstanding wear resistance and heat tolerance during heavy cutting.
• Coating: Steam oxide coating to reduce friction, enhance lubricity, and improve corrosion resistance in tough environments.
• Size: 1-1/8 in diameter, 7 in overall length, suitable for standard BSW threading in compact or deep blind holes.
• Flute design: Spiral flute geometry facilitates smooth chip removal, reducing the risk of re-cutting and breakage in confined holes.
• Usage: Right-hand thread configuration aligned with common BSW specifications for robust, reliable tapping.
• Brand technology: Built on OSG’s advanced threading technology to deliver high-quality threads consistently and extend tool life.

With this tap, you’ll achieve clean, accurate threads that promote strong assemblies and reduce rework. The spiral flute design excels at evacuating chips in blind-hole applications, while the cobalt-enhanced steel and steam-oxide coating work together to resist heat and wear over long production runs. This makes the OSG BSW Spiral Flute Threading Tap an ideal choice for precision machining, automotive, aerospace, and general manufacturing where dependable threading performance matters.