OSG Spiral Flute Tap: M27x3 Metric, D8 / 4H-6H, 4 Flute

An OSG spiral flute tap is used for threading blind holes in materials such as steel, stainless steel, and aluminum. The spiral flute design pulls chips upward and out of the hole, preventing chip clogging and ensuring clean threads in deep or blind-hole applications.

This OSG tap has a metric thread size of M27x3, a D8 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer. It is designed for general-purpose threading in blind holes and is identified by manufacturer part number 2994801.

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine OSG cutting tools like the M27x3 spiral flute tap to customers across multiple industries.

For blind holes, choose a spiral flute tap like this OSG M27x3 model to evacuate chips upward. Match the thread size, pitch, and tolerance class (e.g., D8 / 4H-6H) to your application. Use a modified bottoming chamfer when threads must reach near the hole bottom.