Sandvik Coromant 6967022 Spiral Flute Tap 3/8-16 Unc

Product Description

The SANDVIK COROMANT 6967022 is a spiral flute tap in the CoroTap 300 series, designed for threading 3/8-16 UNC holes in metalworking applications. Built from powdered metal high speed steel with an iron nitride (FeN) coating, it delivers reliable wear resistance in production environments. The tap features a 45-degree helix angle and a modified bottoming chamfer, making it suited for threading into blind holes where chip evacuation is critical. It carries a 3BX class of fit for tighter tolerance threading. Machinists and CNC operators in job shops, production facilities, and maintenance environments install this tap in standard tapping heads or CNC machining centers.

This tap is designed for right-hand threading in steel, stainless steel, cast iron, aluminum and non-ferrous metals, and high-temperature alloys, covering ISO material groups P, M, K, N, and S. The spiral flute design pulls chips up and out of the hole during tapping, which is especially important in blind-hole applications. With an overall length of 100 millimeters (3.937 inches), a shank diameter of 9.68 millimeters (0.381 inches), and a thread length of 16.80 millimeters (0.661 inches), it fits standard tap holders for this thread class. Coolant-through capability is not included on this model.

Key Features

• 3/8-16 UNC right-hand thread form with 3BX class of fit for tighter tolerance applications
• 45-degree helix angle spiral flutes for efficient upward chip evacuation in blind holes
• Powdered metal HSS construction with FeN coating for enhanced wear and heat resistance
• Modified bottoming chamfer allows threading close to the bottom of blind holes
• Rated for steel, stainless steel, cast iron, aluminum, non-ferrous metals, and high-temp alloys
• Part of the CoroTap 300 series, engineered for consistent performance in production tapping

Compatibility

Designed for use in standard tapping chucks and CNC machining center tool holders that accept the 9.68 millimeter shank diameter. Compatible workpiece materials include steel, stainless steel, cast iron, aluminum and non-ferrous metals, and high-temperature alloys (ISO material groups P, M, K, N, and S).

Installation Notes

Installation is performed by machinists and CNC operators following standard tapping procedures. Ensure the spindle and workpiece are properly secured before operation, and confirm tool holder runout is within acceptable limits to avoid tap breakage. Cutting fluid or appropriate tapping compound should be applied for manual tapping operations; verify machine parameters for CNC applications before running. This tap does not include coolant-through capability, so external lubrication is required.