OSG Spiral Flute Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute

An OSG spiral flute tap is used for threading blind holes in materials like steel, stainless steel, and aluminum. Its spiral design pushes chips upward, preventing clogging and ensuring clean threads. This M8x1.25 metric tap with a modified bottoming chamfer is ideal for through-hole or deep-hole applications.

This OSG tap has a metric M8x1.25 thread size, a D5 / 4H-6H tolerance class, 3 flutes, and a modified bottoming chamfer. It is designed for general-purpose threading in blind holes, with a spiral flute geometry that evacuates chips upward. The manufacturer part number is 2991400.

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source genuine OSG cutting tools like the M8x1.25 spiral flute tap (MPN 2991400) and deliver them to your facility. Contact us for a quote and delivery timeline.

For blind holes, choose a spiral flute tap like this OSG M8x1.25 model, which pushes chips out of the hole. Ensure the tap's chamfer type (modified bottoming) matches your thread depth requirements. Verify the thread tolerance (D5 / 4H-6H) aligns with your material and application. Always use proper cutting fluid and speed.