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WIDIA GTD 1/4"-28 UNF Spiral-Flute Tap for Aluminum - Spiral-Flute Taps for Aluminum
WIDIA GTDSpiral-Flute Taps for Aluminum

WIDIA GTD 1/4"-28 UNF Spiral-Flute Tap for Aluminum

The WIDIA GTD Spiral Flute Tap (1/4"-28 UNF) is a high-speed steel tap with a plug chamfer, H3 / 3B tolerance, and 3 flutes, designed for threading aluminum. 3G Electric interprets your demand for this OEM-specified…

SKU 3G-OTH-232787

Brand
WIDIA GTD
Item
1/4"-28 UNF Spiral-Flute Tap for Aluminum
Part Number
16021
Category
Spiral-Flute Taps for Aluminum
Available to Order
Also known as:16021WIDIA GTD
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Technical Specifications

WIDIA GTD
Manufacturer Part Number
16021
Type
H3 / 3B, Plug Chamfer, High Speed Steel
Flute
3

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WIDIA GTD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WIDIA GTD Spiral Flute Tap (1/4"-28 UNF) is a high-speed steel tap with a plug chamfer, H3 / 3B tolerance, and 3 flutes, designed for threading aluminum. 3G Electric interprets your demand for this OEM-specified tool and delivers it across 14 industrial departments, with specialist depth in combustion, pumps, and controls as a trust anchor.

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.

Used in

Common applications for WIDIA GTD
Automotive repair — WIDIA GTD hand taps (e.g., M14x2) for rethreading aluminum engine components and transmission housings.
Aerospace maintenance — WIDIA GTD straight flute taps for threading non-ferrous airframe parts during repair and overhaul.
General engineering — WIDIA GTD M6x1 and M8x1.25 hand taps for creating metric threads in aluminum fixtures and jigs.
Energy sector — WIDIA GTD M18x1.5 taps for threading aluminum valve bodies and manifolds in pneumatic systems.
Appliance manufacturing — WIDIA GTD M12x1.75 taps for producing threaded holes in aluminum casings and frames.
Bicycle frame building — WIDIA GTD M16x2 taps for threading bottom bracket shells and other aluminum frame components.
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WIDIA 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.

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