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

This OSG spiral flute tap is designed for threading blind holes in materials such as steel and aluminum. The spiral flute design evacuates chips upward, preventing clogging. It is commonly used in automotive, aerospace, and general manufacturing applications where precise UNF threads are required.

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 plug chamfer, and a TiCN coating on high speed steel. The manufacturer part number is 1430208. This tap is suitable for threading blind holes in ferrous and non-ferrous materials.

You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG spiral flute tap 1430208 or other OSG tooling.

For blind holes, choose a spiral flute tap like this OSG model to evacuate chips upward. Ensure the thread size (1/4-28 UNF) and tolerance class (H3 / 2B-3B) match your application. The TiCN coating improves wear resistance in harder materials. Always match the tap to the material and hole depth for best results.