OSG Extension Tap: #6-40 UNF, H2 / 2B-3B, 3 Flute, Plug Chamfer

The OSG #6-40 UNF extension tap is designed for threading blind or deep holes in multiple materials. Its extended reach and spiral-point geometry push chips forward, making it suitable for production tapping in steel, stainless steel, and aluminum. The V coating and powdered metal construction improve wear resistance and tool life.

The OSG extension tap (MPN 1653501108) is a #6-40 UNF size with a H2 / 2B-3B thread class. It has 3 flutes, a plug chamfer, and a V coating on powdered metal. The spiral-point design is intended for through-hole or blind-hole tapping in multiple materials. These specs are from the manufacturer's technical data.

3G Electric supplies OSG extension taps like the #6-40 UNF model to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact our team for a quote and lead time. As a global industrial distributor, we source and deliver genuine OSG tooling to any country.

To select the correct OSG extension tap, match the thread size (e.g., #6-40 UNF), thread class (H2 / 2B-3B), and chamfer type (plug) to your hole and material. For deep or blind holes, an extension tap provides the needed reach. Always verify the coating (V coated powdered metal) suits your workpiece material for optimal performance.