OSG Threading Tap - BSW Spiral Point HSS-E - Steam Oxide Coated - Through Hole - 7/8 x 9

The OSG BSW Spiral Point Threading Tap is a high-performance tool designed for through-hole threading in precision metalworking. Crafted from HSS-E (high-speed steel with cobalt) and finished with a durable Steam Oxide coating, it delivers consistent, high-quality threads with longer tool life in demanding production environments.

• Through-Hole Design: Optimized for cutting internal threads in through holes, ensuring clean, accurate engagement.
• BSW Spiral Point Geometry: Spiral point taps push chips forward for efficient evacuation and smooth cutting action.
• Material: HSS-E (cobalt-enhanced high-speed steel) for excellent wear resistance and heat tolerance.
• Coating: Steam oxide coating reduces friction and provides added corrosion resistance for extended tool life.
• Size: 7/8 in diameter with 9 TPI in the BSW thread profile, suited to common through-hole applications.
• Brand and Technology: OSG’s advanced threading technology delivers precise, repeatable results you can trust in critical tasks.

Designed to improve productivity and thread quality, this tap minimizes dwell time and reduces tool changes on through-hole components. The cobalt-infused HSS-E structure combined with the Steam Oxide coating maintains cutting efficiency under heat, while the spiral point geometry streamlines chip control for faster tapping cycles. It’s an ideal choice for automotive, machinery, and general engineering applications where reliable, accurate threads are essential and tool life matters.