OSG Spiral Point Tap: 9/16"-12 UNC, H3 / 2B-3B, 3 Flute

The OSG spiral point tap 1725005 is designed for threading blind or through holes in steel and stainless steel. Its spiral point design pushes chips forward, reducing chip clogging and improving thread quality. It is commonly used in automotive, aerospace, and general manufacturing applications requiring precise UNC threads.

This OSG tap has a 9/16"-12 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. The H3 ground thread form ensures accurate fit for class 2B or 3B nuts. The spiral point geometry is optimized for steel and stainless steel, and the manufacturer part number is 1725005.

You can source the OSG spiral point tap 1725005 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 genuine OSG cutting tools for your threading operations.

Select an OSG spiral point tap based on thread size, pitch, and material. For steel and stainless steel, use a tap with H3 tolerance for precise class 2B or 3B threads. The 9/16"-12 UNC plug chamfer tap is ideal for through holes. Always match the tap to the hole type and material hardness for optimal thread quality and tool life.