OSG Spiral Flute Tap: M4x0.7 Metric, D4 / 4H-6H, 3 Flute

The OSG spiral flute tap M4x0.7 is designed for threading blind holes in steel and stainless steel. Its spiral flute design lifts chips upward, preventing clogging in deep or blind holes. The modified bottoming chamfer allows threading close to the hole bottom, making it ideal for precision tapping in automotive, aerospace, and general manufacturing applications.

The OSG spiral flute tap has a metric M4x0.7 thread size, a D4 / 4H-6H tolerance class, 3 flutes, and a modified bottoming chamfer. The manufacturer part number is 1705601. It is designed for threading steel and stainless steel, with the spiral flute geometry aiding chip evacuation in blind-hole applications.

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 times. 3G Electric supplies genuine OSG cutting tools for manufacturing and maintenance operations across industries.

To select the correct OSG spiral flute tap for steel, match the thread size (e.g., M4x0.7) and tolerance class (e.g., D4 / 4H-6H) to your application. For blind holes, choose a spiral flute design with a modified bottoming chamfer to thread near the hole bottom. Ensure the tap is rated for steel or stainless steel to avoid breakage.