WIDIA GTD Spiral Point Tap: 1/4"-28 UNF, H2, 2 Flute, Plug Chamfer, High Speed Steel (MPN 13278)
SKU 3G-OTH-215340
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is a WIDIA GTD spiral point tap used for?
A WIDIA GTD spiral point tap is used for threading blind or through holes in materials like steel and aluminum. Its spiral point design pushes chips forward, preventing clogging and ensuring clean threads. This 1/4"-28 UNF tap is ideal for general-purpose machining in automotive, aerospace, and industrial manufacturing.
What are the specifications of the WIDIA GTD 13278 tap?
The WIDIA GTD 13278 is a 1/4"-28 UNF spiral point tap with H2 tolerance, plug chamfer, 2 flutes, and high-speed steel construction. It is designed for threading through holes and blind holes in ferrous and non-ferrous materials, providing reliable chip evacuation and thread accuracy.
Where to buy WIDIA GTD taps in worldwide?
3G Electric supplies WIDIA GTD taps worldwide, handling full logistics and customs clearance for international orders. As a global industrial solutions provider, we source genuine WIDIA GTD cutting tools like the 13278 spiral point tap and deliver them to your facility, ensuring compliance with local import requirements.
How to select the right WIDIA GTD tap for a job?
Select a WIDIA GTD tap based on thread size, pitch, material, and hole type. For through holes, a spiral point tap like the 1/4"-28 UNF 13278 pushes chips forward. For blind holes, consider a spiral flute tap. Match the H tolerance (e.g., H2) to your thread class and use appropriate cutting fluid for the workpiece material.
Used in
Common applications for WIDIA GTDWIDIA GTD Products
3G Electric supplies WIDIA GTD general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














