OSG Spiral Flute Tap: #8-32 UNC, H5 / 2B, 3 Flute, Modified Bottoming Chamfer (MPN 1722308)
SKU 3G-OTH-219016
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Frequently Asked Questions
What is the OSG spiral flute tap #8-32 UNC used for?
The OSG spiral flute tap #8-32 UNC is designed for threading blind holes in steel and stainless steel. Its spiral flute design lifts chips upward, preventing clogging in deep or blind holes. This tap is ideal for automotive, aerospace, and general manufacturing applications requiring precise internal threads.
What are the specifications of the OSG spiral flute tap #8-32 UNC?
The OSG spiral flute tap has a #8-32 UNC thread size, H5 tolerance for the tap, and 2B class of fit for the nut. It features 3 flutes and a modified bottoming chamfer, allowing threading close to the bottom of blind holes. The manufacturer part number is 1722308.
Where to buy OSG spiral flute taps worldwide?
You can source OSG spiral flute taps 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 cutting tools for steel and stainless steel applications.
How to select the right OSG tap for steel threading?
For threading steel, select an OSG spiral flute tap with the correct thread size, such as #8-32 UNC, and a modified bottoming chamfer for blind holes. Ensure the tap tolerance (H5) matches the required thread class (2B). OSG taps are engineered for chip evacuation in steel and stainless steel, reducing breakage and improving thread quality.
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3G Electric supplies OSG spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















