OSG 1/2"-20 UNF Spiral-Point Extension Tap for Steel & Stainless Steel

This OSG extension tap is designed for threading blind or deep holes in steel and stainless steel. Its spiral-point design pushes chips forward, reducing clogging. The 1/2"-20 UNF size and plug chamfer make it suitable for precision threading in automotive, aerospace, and general manufacturing applications.

The OSG Extension Tap MPN 1766001 has a 1/2"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is a spiral-point tap designed for steel and stainless steel. The H3 tolerance ensures precise thread fit for class 2B or 3B applications.

You can source the OSG Extension Tap 1/2"-20 UNF 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 on this OSG tap.

Select an OSG extension tap based on thread size, tolerance (e.g., H3 for precision), and material. For steel and stainless steel, use a spiral-point tap with plug chamfer to push chips forward. Ensure the tap length matches your hole depth. OSG taps are designed for consistent performance in demanding applications.