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WIDIA GTD

WIDIA GTD is a product line within the WIDIA brand, a global manufacturer of metal-cutting tools headquartered in the United States. The GTD designation refers to the Greenfield Tap & Die heritage, a legacy brand acquired by WIDIA that has been producing threading tools since the early 20th century. WIDIA GTD specializes in taps, dies, and threading accessories for a wide range of materials and applications. The product families include spiral-point taps, spiral-flute taps, straight-flute taps, thread-forming taps, and hand tap sets. These tools are available in various coatings (TiN, TiCN, black oxide) and substrate materials (high-speed steel, cobalt high-speed steel) to suit different workpiece hardness and cutting conditions. WIDIA GTD taps are manufactured to standard thread classes (H limits for inch threads, 6H/6G for metric) and are offered in multiple chamfer styles (plug, bottoming, semi-bottoming, taper) to accommodate through-hole and blind-hole threading. The line covers inch (UNC, UNF, NPT) and metric (coarse, fine) thread profiles, with sizes ranging from small machine screw (#0) to large fractional diameters (up to 1 inch or M24). 3G Electric stocks over 1,699 SKUs of WIDIA GTD taps and threading tools, ensuring availability of common and specialty sizes for industrial maintenance, production machining, and job-shop operations. The inventory includes general-purpose taps for steel and stainless steel, aluminum-specific taps with optimized flute geometry, and thread-forming taps for ductile materials. Each product is specified with manufacturer part numbers (MPN) for traceability and cross-referencing. 3G Electric supports global procurement with no minimum order quantities, enabling engineers and buyers to source single tools or bulk quantities for scheduled maintenance or production runs.

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About WIDIA GTD

WIDIA GTD is a product line within the WIDIA brand, a global manufacturer of metal-cutting tools headquartered in the United States. The GTD designation refers to the Greenfield Tap & Die heritage, a legacy brand acquired by WIDIA that has been producing threading tools since the early 20th century. WIDIA GTD specializes in taps, dies, and threading accessories for a wide range of materials and applications. The product families include spiral-point taps, spiral-flute taps, straight-flute taps, thread-forming taps, and hand tap sets. These tools are available in various coatings (TiN, TiCN, black oxide) and substrate materials (high-speed steel, cobalt high-speed steel) to suit different workpiece hardness and cutting conditions. WIDIA GTD taps are manufactured to standard thread classes (H limits for inch threads, 6H/6G for metric) and are offered in multiple chamfer styles (plug, bottoming, semi-bottoming, taper) to accommodate through-hole and blind-hole threading. The line covers inch (UNC, UNF, NPT) and metric (coarse, fine) thread profiles, with sizes ranging from small machine screw (#0) to large fractional diameters (up to 1 inch or M24). 3G Electric stocks over 1,699 SKUs of WIDIA GTD taps and threading tools, ensuring availability of common and specialty sizes for industrial maintenance, production machining, and job-shop operations. The inventory includes general-purpose taps for steel and stainless steel, aluminum-specific taps with optimized flute geometry, and thread-forming taps for ductile materials. Each product is specified with manufacturer part numbers (MPN) for traceability and cross-referencing. 3G Electric supports global procurement with no minimum order quantities, enabling engineers and buyers to source single tools or bulk quantities for scheduled maintenance or production runs.

Common Applications

  • 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

Frequently asked questions

Common questions about WIDIA GTD from 3G Electric.

What coatings are available on WIDIA GTD taps, and how do they affect performance?

WIDIA GTD taps are offered with TiN (titanium nitride), TiCN (titanium carbonitride), and black oxide coatings. TiN coating provides general-purpose wear resistance and reduces friction, suitable for steels and cast irons. TiCN coating offers higher hardness and thermal stability, ideal for abrasive materials like stainless steel and high-temperature alloys. Black oxide is a surface treatment that improves lubricity and corrosion resistance, often used on cobalt taps for ferrous materials. The coating choice extends tool life and improves thread quality by reducing built-up edge and galling.

What is the difference between spiral-point and spiral-flute WIDIA GTD taps?

Spiral-point taps (also called gun taps) have a cutting face angled forward to push chips ahead of the tap, making them suitable for through-hole threading. They typically have 2 to 3 flutes and a plug chamfer. Spiral-flute taps have helical flutes that pull chips upward and out of the hole, designed for blind-hole threading. They usually have 3 flutes and a bottoming or semi-bottoming chamfer. WIDIA GTD offers both types in inch and metric sizes, with coatings optimized for specific materials.

What thread classes are available for WIDIA GTD inch taps?

WIDIA GTD inch taps are manufactured to H limits (e.g., H2, H3, H4, H5) which define the pitch diameter tolerance relative to the basic thread profile. Common classes include H2 for 2B fit, H3 for 3B fit, and H5 for looser tolerances. The specific H limit is marked on the tap shank or in the product specification. For metric taps, WIDIA GTD uses 6H (internal thread tolerance) and 6G (for coated taps) as standard.

Can WIDIA GTD taps be used for threading aluminum?

Yes, WIDIA GTD offers taps specifically designed for aluminum, such as the spiral-flute tap for aluminum (SKU 13X332, MPN 16058) and straight-flute machine taps for aluminum (SKU 11W881, MPN GT40). These taps feature polished flutes and optimized rake angles to reduce chip adhesion and improve surface finish. They are typically made from high-speed steel and may have a 2BX thread class for controlled fit in aluminum alloys.

What is the difference between a hand tap and a machine tap in the WIDIA GTD line?

WIDIA GTD hand taps (e.g., straight-flute taps like SKU 53ML85) are designed for manual or low-speed machine use, with a taper chamfer for gradual cutting. Machine taps (e.g., spiral-point or spiral-flute) are intended for higher-speed CNC or production tapping, with geometries that optimize chip evacuation and tool life. Machine taps often have tighter tolerances (e.g., H3) and coatings for extended performance. Both types are available in the GTD line.

Does 3G Electric supply WIDIA GTD products?

Yes — 3G Electric (S) Pte. Ltd. supplies WIDIA GTD products. We stock the WIDIA GTD catalog and supply genuine factory-original products with full manufacturer warranty and technical support.