OSG 7/16"-14 UNC Spiral-Flute Extension Tap

The OSG extension tap 1768901 is designed for threading blind holes in steel and stainless steel. Its spiral-flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It is commonly used in automotive, aerospace, and general manufacturing applications.

This OSG extension tap has a 7/16"-14 UNC thread size, H3 / 2B-3B tolerance, and a 3-flute modified bottoming chamfer. It is a spiral-flute tap designed for steel and stainless steel. The manufacturer part number is 1768901. These specs ensure precise thread fit and chip evacuation in blind-hole applications.

You can source the OSG extension tap 1768901 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this tap to procurement teams and engineers internationally.

Select an OSG extension tap based on thread size, tolerance, and material. For steel and stainless steel, use a spiral-flute tap like the 1768901 with H3 / 2B-3B tolerance for blind holes. Match the UNC thread size (7/16"-14) to your application. Consult OSG's technical data for optimal chamfer and flute design.