OSG Spiral Flute Tap: M4.5x0.75 Metric, D4 / 4H-6H, 3 Flute, Bottoming Chamfer

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 machining applications.

The OSG spiral flute tap has a metric thread size of M4.5x0.75, a D4 / 4H-6H tolerance class, 3 flutes, and a bottoming chamfer. The manufacturer part number is 1650010408. It is designed for threading steel and stainless steel in blind-hole applications.

3G Electric supplies OSG spiral flute taps worldwide. As 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 M4.5x0.75 tap or other OSG tooling needs.

Select an OSG spiral flute tap based on thread size, pitch, tolerance class, and material. For steel and stainless steel, use taps with D4 / 4H-6H tolerance for precise fit. Bottoming chamfer taps are ideal for blind holes. Always match the tap coating and geometry to the workpiece hardness for optimal thread quality and tool life.