OSG Spiral Flute Tap: M5.5x0.5 Metric, D3 / 4H-6H, 3 Flute

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and enabling clean threads in materials up to 850 N/mm² tensile strength. It is commonly used in automotive, aerospace, and general manufacturing applications.

The OSG spiral flute tap has a metric thread size of M5.5 with a 0.5 mm pitch, a D3 / 4H-6H tolerance class, 3 flutes, and a bottoming chamfer. The manufacturer part number is 1650010708. It is designed for threading blind holes in steel and stainless steel.

You can source OSG spiral flute taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this M5.5x0.5 tap or other OSG tooling needs.

Select an OSG spiral flute tap based on thread size, pitch, and material. For steel and stainless steel, use taps with a D3 / 4H-6H tolerance class for precise fit. Ensure the chamfer type matches your hole: bottoming for blind holes. Always match the tap coating to the material hardness for optimal tool life.