WIDIA GTD Spiral Flute Tap: #12-24 UNC, H3 / 3B, 3 Flute, Semi-Bottoming Chamfer
The WIDIA GTD Spiral Flute Tap (#12-24 UNC, SKU 445C21) is a general-purpose spiral-flute tap with an H3 / 3B tolerance, semi-bottoming chamfer, and TiCN-coated cobalt construction. It features 3 flutes and is…
SKU 3G-OTH-230235
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Product Description
The WIDIA GTD Spiral Flute Tap (#12-24 UNC, SKU 445C21) is a general-purpose spiral-flute tap with an H3 / 3B tolerance, semi-bottoming chamfer, and TiCN-coated cobalt construction. It features 3 flutes and is identified by manufacturer part number VTSFT-TC5039.
Frequently Asked Questions
What is the WIDIA GTD spiral flute tap used for?
This tap is designed for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing chip clogging. It is commonly used in automotive, aerospace, and general manufacturing applications where precise internal threads are required.
What are the specifications of the WIDIA GTD spiral flute tap?
The tap has a #12-24 UNC thread size with an H3 / 3B tolerance class. It features 3 flutes, a semi-bottoming chamfer, and a TiCN coating on cobalt steel. The manufacturer part number is VTSFT-TC5039. It is suitable for threading blind holes in materials up to 850 °C hardness.
Where to buy WIDIA GTD taps in worldwide?
3G Electric supplies WIDIA GTD taps worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine WIDIA GTD tooling to support your production needs.
How to select the correct WIDIA GTD tap for blind holes?
For blind holes, choose a spiral flute tap with a semi-bottoming chamfer, like this #12-24 UNC model. The TiCN coating improves wear resistance on cobalt steel. Ensure the tap tolerance (H3 / 3B) matches your thread class requirement. Always use proper cutting fluid and follow manufacturer speed/feed recommendations.
Used in
Common applications for WIDIA GTDWIDIA GTD Products
3G Electric supplies WIDIA GTD general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
