WIDIA GTD Spiral Flute Tap: 7/16"-20 UNF, H11, 3 Flute, Semi-Bottoming Chamfer (MPN VTSFT-TC5079)

The WIDIA GTD spiral flute tap is used for threading blind holes in materials such as steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly applied in automotive, aerospace, and general manufacturing where precise UNF threads are required.

This WIDIA GTD tap has a thread size of 7/16"-20 UNF, an H11 tolerance, 3 flutes, and a semi-bottoming chamfer. The manufacturer part number is VTSFT-TC5079. It is an oversized spiral-flute tap designed for threading blind holes in ferrous materials.

You can source WIDIA GTD taps through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead times on the VTSFT-TC5079 and other WIDIA GTD tooling.

Select a WIDIA GTD tap based on thread size, pitch, and material. For blind holes, use a spiral flute tap like this 7/16"-20 UNF model with a semi-bottoming chamfer. Match the H tolerance to your thread class. Consult WIDIA GTD technical data for optimal speeds and feeds.