The OSG Metric Spiral Flute Threading Tap is a high-performance tool crafted for forming precise internal threads in blind holes. Designed for machinists and fabricators who demand reliable results in challenging materials, it balances durability with finishing quality to empower productive, consistent threading tasks.

• Thread Size: Metric threading for M18 x 2.5 internal threads in blind-hole applications.
• Material: HSS-E (high-speed steel with cobalt) for enhanced hot hardness and wear resistance.
• Coating: Steam oxide finish to improve wear resistance and heat dissipation during cutting.
• Flute Design: Spiral flutes optimize chip evacuation, reducing clogging in tight blind holes.
• Precision Cutting Edges: Ground geometry delivers clean, consistent threads with good surface finish.
• Application Range: Ideal for steel, alloy, and other common metals where robust internal threads in blind holes are required.

This tap helps you achieve dependable thread quality in hard-to-reach cavities, with longer tool life and fewer interruptions due to wear or chip buildup. The combination of HSS-E cobalt content and a steam oxide coating means better performance under higher cutting temperatures, making it suitable for production runs and precision jobs alike. Use in automotive, industrial fabrication, and general machining scenarios where reliable M18 x 2.5 internal threads in blind holes are essential.