OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer

The OSG spiral flute tap is used for threading blind holes in materials such as steel and aluminum. Its spiral flute design evacuates chips upward, preventing clogging. The bottoming chamfer allows threading close to the bottom of the hole. It is suitable for general-purpose machining in automotive, aerospace, and industrial manufacturing.

This OSG tap has a 3/8"-16 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is made of high-speed steel. The manufacturer part number is 1430900. It is designed for threading blind holes in a variety of materials.

You can source OSG spiral flute taps worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We supply genuine OSG cutting tools for industrial applications.

Select the tap based on thread size, pitch, and hole type. For blind holes, use a bottoming chamfer tap like this OSG model. Ensure the tap tolerance (H3 / 2B-3B) matches your required thread class. Use high-speed steel for general materials. Always match the tap to the material being threaded for best results.