OSG Spiral Flute Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging. The bottoming chamfer allows threading close to the bottom of the hole. It is commonly used in automotive, aerospace, and general manufacturing applications.

The OSG spiral flute tap has a thread size of 1/4-28 UNF, with a H3 / 2B-3B tolerance class. It features 3 flutes, a bottoming chamfer, and a V coating on powdered metal construction. The manufacturer part number is 0142708. This tap is suitable for threading steel and stainless steel.

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. 3G Electric supplies genuine OSG cutting tools for manufacturing operations globally.

Select the tap based on thread size, pitch, and tolerance class (e.g., H3 / 2B-3B). For blind holes in steel or stainless steel, choose a spiral flute tap with a bottoming chamfer. Ensure the coating (V coating) matches the material. OSG taps are designed for high-performance threading; consult technical data for optimal speeds and feeds.