The OSG BSF Spiral Flute Threading Tap is a precision tool designed for reliable blind-hole threading in metalwork, ideal for machinists and job shops that demand accuracy and durability.

• Material: HSS-E (high-speed steel with cobalt) for superior wear resistance and heat tolerance during demanding tapping tasks
• Coating: Steam oxide coating enhances surface protection and tool life in tough machining environments
• Threading Type: BSF (British Standard Fine) spiral flute design for clean, precise threads in blind holes
• Size: 1/4 x 26, compact and ready for small-diameter blind-hole tapping
• Flute Design: Spiral flutes promote efficient chip evacuation and smoother cutting in limited-access holes
• Application: Specifically optimized for blind-hole threading, delivering consistent results where space is constrained

This tap leverages advanced threading technology to produce accurate threads with minimal runout and extended tool life, reducing rework and increasing throughput. The combination of cobalt-enriched HSS-E and a durable steam oxide finish provides reliable performance across repeated usage in challenging materials, helping you achieve repeatable results in precision assemblies and critical machining tasks.