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WIDIA GTD 7/16"-20 UNF Spiral-Flute Tap - General Purpose Spiral-Flute Taps
WIDIA GTDGeneral Purpose Spiral-Flute Taps

WIDIA GTD 7/16"-20 UNF Spiral-Flute Tap

The WIDIA GTD Spiral Flute Tap (7/16"-20 UNF) is a general-purpose tap with an H5 / 2B tolerance, bottoming chamfer, black oxide cobalt finish, and 3 flutes (MPN 5390247). 3G Electric interprets demand and sources…

SKU 3G-OTH-230613

Brand
WIDIA GTD
Item
7/16"-20 UNF Spiral-Flute Tap
Category
General Purpose Spiral-Flute Taps
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

WIDIA GTD
Manufacturer Part Number
5390247
Type
H5 / 2B, Bottoming Chamfer, Black Oxide Cobalt
Flute
3

Technical Documents

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

Product Description

The WIDIA GTD Spiral Flute Tap (7/16"-20 UNF) is a general-purpose tap with an H5 / 2B tolerance, bottoming chamfer, black oxide cobalt finish, and 3 flutes (MPN 5390247). 3G Electric interprets demand and sources this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps, and controls — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the WIDIA GTD spiral flute tap used for?

The WIDIA GTD spiral flute tap is used for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, making it ideal for bottoming chamfer applications where chip clearance is critical. Common industries include automotive, aerospace, and general manufacturing.

What are the specifications of the WIDIA GTD spiral flute tap 5390247?

The WIDIA GTD spiral flute tap (MPN 5390247) has a thread size of 7/16"-20 UNF, with an H5 tolerance for 2B class fit. It features 3 flutes, a bottoming chamfer, and a black oxide cobalt finish for wear resistance. It is designed for general-purpose threading in steel and cast iron.

Where to buy WIDIA GTD taps in worldwide?

You can source WIDIA GTD taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the 5390247 spiral flute tap.

How to select the correct WIDIA GTD tap for a blind hole?

For blind holes, choose a spiral flute tap like the WIDIA GTD 5390247 with a bottoming chamfer to thread close to the hole bottom. Ensure the tap's thread size (7/16"-20 UNF) and tolerance (H5) match your required class of fit. Use appropriate cutting fluid for the workpiece material.

Used in

Common applications for WIDIA GTD
Automotive manufacturing — WIDIA GTD spiral-point taps (e.g., VTSPO5099) for through-hole threading in engine blocks
Aerospace component production — WIDIA GTD TiCN-coated taps for threading stainless steel and titanium alloys
General machining job shops — WIDIA GTD hand tap sets for maintenance and repair threading of UNC/UNF fasteners
Aluminum fabrication — WIDIA GTD spiral-flute taps for aluminum (e.g., MPN 16058) for blind-hole threading in heat sinks
Hydraulic system assembly — WIDIA GTD thread-forming taps (e.g., MPN 19862) for cold-forming threads in ductile materials
Oil and gas equipment — WIDIA GTD cobalt spiral-flute taps (e.g., VTSFT5170) for threading high-strength steel components

WIDIA 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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
WIDIA GTD Spiral Flute Tap: 7/16"-14 UNC, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390245)
WIDIA GTD
WIDIA GTD Spiral Flute Tap: 7/16"-14 UNC, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390245)
WIDIA GTD Spiral Flute Tap: 5/16"-24 UNF, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390238)
WIDIA GTD
WIDIA GTD Spiral Flute Tap: 5/16"-24 UNF, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390238)
WIDIA GTD Spiral Flute Tap: 1/4"-20 UNC, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390232)
WIDIA GTD
WIDIA GTD Spiral Flute Tap: 1/4"-20 UNC, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390232)
WIDIA GTD Spiral Flute Tap: 5/16"-18 UNC, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390236)
WIDIA GTD
WIDIA GTD Spiral Flute Tap: 5/16"-18 UNC, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390236)
WIDIA GTD Spiral Flute Tap: #10-32 UNF, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390230)
WIDIA GTD
WIDIA GTD Spiral Flute Tap: #10-32 UNF, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390230)
WIDIA GTD Spiral Flute Tap: 1/2"-13 UNC, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390249)
WIDIA GTD
WIDIA GTD Spiral Flute Tap: 1/2"-13 UNC, H5 / 2B, 3 Flute, Bottoming Chamfer, Black Oxide Cobalt (MPN 5390249)

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