OSG Extension Tap: M20x2 Metric, D7 / 4H-6H, 4 Flute

The OSG Extension Tap M20x2 is used for threading blind or deep holes in multiple materials. Its spiral-flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It is suitable for production machining in automotive, aerospace, and general engineering.

The OSG Extension Tap has a metric M20x2 thread, a D7 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer. The manufacturer part number is 1652008608. It is designed as a spiral-flute extension tap for multiple materials, enabling deep-hole threading with efficient chip evacuation.

You can source the OSG Extension Tap M20x2 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable supply for this OSG cutting tool.

Select an OSG extension tap based on thread size, pitch, and hole depth. For M20x2 threads, ensure the tap has a spiral-flute design for chip evacuation and a modified bottoming chamfer if threading near the hole bottom. Match the tolerance class (e.g., D7 / 4H-6H) to your required fit. Consult OSG's technical data for material-specific speeds and feeds.