WIDIA GTD Spiral Point Tap: 5/16"-18 UNC, H3, 3 Flute, Plug Chamfer
The WIDIA GTD Spiral Point Tap (5/16"-18 UNC) is a general-purpose spiral-point tap with an H3 tolerance, plug chamfer, and TiN-coated high-speed steel construction. It features 3 flutes and is identified by…
SKU 3G-OTH-215720
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Product Description
The WIDIA GTD Spiral Point Tap (5/16"-18 UNC) is a general-purpose spiral-point tap with an H3 tolerance, plug chamfer, and TiN-coated high-speed steel construction. It features 3 flutes and is identified by manufacturer part number 19384.
Frequently Asked Questions
What is the WIDIA GTD spiral point tap used for?
The WIDIA GTD spiral point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its TiN coating reduces friction and extends tool life, making it suitable for general-purpose tapping in automotive, aerospace, and industrial manufacturing applications.
What are the specifications of the WIDIA GTD spiral point tap?
This WIDIA GTD tap has a 5/16"-18 UNC thread size, H3 tolerance, 3 flutes, and a plug chamfer. It is made from TiN coated high speed steel. The manufacturer part number is 19384. It is designed for through-hole tapping in a variety of materials.
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 facility. Contact us for pricing and lead time on this and other WIDIA GTD cutting tools.
How to select the correct WIDIA GTD tap for a job?
Select a WIDIA GTD tap based on thread size, pitch, and material. For through holes, a spiral point tap like this 5/16"-18 UNC model is ideal. Consider coating (TiN for general use) and chamfer type (plug for most applications). Always match the tap to the material hardness and hole depth.
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.














