OSG #8-32 UNC Spiral-Flute Extension Tap for Steel & Stainless Steel

The OSG Extension Tap #8-32 UNC is used for threading blind holes in steel and stainless steel. Its spiral-flute design evacuates chips upward, making it ideal for deep-hole tapping. The bottoming chamfer allows threading close to the hole bottom. It is commonly used in automotive, aerospace, and general manufacturing applications.

The OSG Extension Tap #8-32 UNC has a thread size of #8-32 UNC with a thread class of H3 / 2B-3B. It features 3 flutes and a bottoming chamfer. The manufacturer part number is 0143901. This spiral-flute extension tap is designed for steel and stainless steel, providing efficient chip evacuation in deep-hole tapping operations.

You can source the OSG Extension Tap #8-32 UNC 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. We supply genuine OSG taps to support your manufacturing needs.

To select the correct OSG Extension Tap for steel, match the thread size and class to your application. For #8-32 UNC threads, choose a tap with H3 / 2B-3B tolerance. Use a spiral-flute design for blind holes and a bottoming chamfer for threading near the hole bottom. OSG taps are engineered for steel and stainless steel, ensuring reliable performance.