The OSG BSF Spiral Point Threading Tap is a precision through-hole tapping tool designed for British Standard Fine (BSF) threads. Crafted from HSS-E cobalt and finished with a steam oxide coating, it delivers durable, heat-resistant performance for demanding machining tasks.

• Thread size and type: 7/8" diameter, 11 TPI BSF through-hole threading tap for accurate BSF threads.
• Material: HSS-E cobalt blends hardness and wear resistance for extended tool life under heat.
• Coating: Steam oxide finish enhances lubricity and corrosion resistance during use.
• Design: Spiral point geometry facilitates efficient chip evacuation and positive threading action in through holes.
• Application: Optimized specifically for through-hole tapping to produce clean, consistent threads with minimal chip buildup.
• Brand: OSG craftsmanship ensures reliable performance and repeatable results in precision threading.

With its cobalt-enhanced substrate and protective steam oxide coating, this tap delivers reliable performance across a range of metals while resisting heat-induced wear. The spiral point design pushes chips forward, reducing clogging and improving tapping speed in through-hole work. Ideal for professional shops, maintenance teams, and production environments that require accurate BSF threads and long tool life, the OSG BSF Spiral Point Threading Tap helps you complete critical machining tasks with confidence.