OSG Spiral Flute Tap: 1 1/8"-7 UNC, H9 / 2B-3B, 4 Flute

The 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 ensuring clean threads. The modified bottoming chamfer allows threading close to the bottom of the hole, making it ideal for high-precision applications in automotive, aerospace, and general manufacturing.

This OSG tap has a size of 1 1/8"-7 UNC with a H9 / 2B-3B tolerance class. It features 4 flutes and a modified bottoming chamfer. The manufacturer part number is 1650507108. It is designed for threading steel and stainless steel, providing accurate thread formation and 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 time. We supply genuine OSG cutting tools for manufacturing and maintenance operations across industries.

Select an OSG spiral flute tap based on thread size, pitch, and material. For steel and stainless steel, choose a tap with H9 / 2B-3B tolerance for precise fit. The modified bottoming chamfer is ideal for blind holes. Ensure the tap matches your hole depth and machine capability. Consult OSG's technical data for optimal speeds and feeds.