OSG Spiral-Point Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Extension Tap 1765001 is a spiral-point extension tap designed for threading blind or through holes in steel and stainless steel. Its 3-flute, plug chamfer design reduces torque and improves chip evacuation, making it suitable for production tapping in automotive, aerospace, and general manufacturing applications.

The OSG Extension Tap 1765001 has a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance class, 3-flute design, and plug chamfer. It is a spiral-point extension tap for steel and stainless steel. The manufacturer part number is 1765001.

You can source the OSG Extension Tap 1765001 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 on this and other OSG taps.

To select the correct OSG extension tap for steel, match the thread size (e.g., 1/4"-20 UNC), tolerance class (H3 / 2B-3B), and chamfer type (plug for blind holes) to your application. Spiral-point taps push chips forward, ideal for through holes. Confirm material compatibility with OSG's recommendations for steel and stainless steel.