WIDIA GTD Spiral Flute Tap: 1/4"-28 UNF, H3 / 3B, 3 Flute, Plug Chamfer
SKU 3G-OTH-232787
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Frequently Asked Questions
What is the WIDIA GTD spiral flute tap used for?
The WIDIA GTD spiral flute tap is designed for threading aluminum and non-ferrous materials. Its 3-flute design and plug chamfer efficiently evacuate chips upward, making it ideal for through-hole and blind-hole applications in automotive, aerospace, and general machining.
What are the specifications of the WIDIA GTD 1/4"-28 UNF tap?
This WIDIA GTD tap has a 1/4"-28 UNF thread size, H3 / 3B tolerance, 3 flutes, plug chamfer, and is made of high-speed steel. The manufacturer part number is 16021. It is suitable for threading aluminum and soft materials with precision.
Where to buy WIDIA GTD taps in worldwide?
3G Electric supplies WIDIA GTD taps worldwide, including the 1/4"-28 UNF spiral flute tap. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other WIDIA cutting tools.
How to select the right spiral flute tap for aluminum?
For aluminum, choose a spiral flute tap with a plug chamfer and high-speed steel construction, like the WIDIA GTD 16021. The 3-flute design aids chip evacuation. Ensure thread size (e.g., 1/4"-28 UNF) and tolerance (H3 / 3B) match your application requirements.
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Common applications for WIDIA GTDWIDIA GTD Products
3G Electric supplies WIDIA GTD spiral-flute taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














