OSG Spiral Flute Tap: 7/8"-9 UNC, H4 / 2B-3B, 4 Flute

The OSG spiral flute tap 1726201 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.

The OSG tap 1726201 is a 7/8"-9 UNC spiral flute tap with 4 flutes, a modified bottoming chamfer, and an H4 / 2B-3B tolerance class. It is designed for threading steel and stainless steel. The H4 tolerance ensures precise fit for 2B-3B class threads, making it suitable for high-accuracy applications.

3G Electric supplies OSG taps, including model 1726201, to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact our team to place an order or request a quote for this and other OSG threading tools.

For steel and stainless steel, choose a spiral flute tap like the OSG 1726201 for blind holes, as it clears chips upward. Match the tap size (7/8"-9 UNC) and tolerance (H4 / 2B-3B) to your thread requirements. Ensure the chamfer type (modified bottoming) suits your hole depth. Always use appropriate cutting fluid for material and speed.