Skip to Main Content

57N50 - Weldcraft 57N50 3/16" TIG Collet for Large Gas Lens & Heavy Duty Torches (2-Pack)

Packaging: 2 per ea
$76.68/ea

Package Price:

$157.92/2 per ea

Usually ships within 3-5 business days

SKU: MIL57N50 Categories: ,

OVERVIEW

High-Performance Current Transfer for Heavy TIG Applications

The Weldcraft 57N50 3/16" (4.8mm) Collet is an essential consumable designed for welders demanding precision and reliability in high-amperage Gas Tungsten Arc Welding (GTAW). Manufactured to strict tolerances, this collet serves as the critical interface between the TIG torch and the tungsten electrode, ensuring efficient current transfer and stable arc initiation. Constructed from a premium copper alloy, the 57N50 is engineered to withstand the intense thermal cycles associated with heavy plate welding and continuous duty cycles.

This specific collet features a unique compatibility profile. It is the standard collet for heavy-duty industrial torches such as the WP-12 and WP-27 series, which are designed for high-current applications. Additionally, it is the required collet when utilizing Large Diameter Gas Lens setups on standard WP-17, WP-18, and WP-26 series torches. This versatility makes it a vital component for fabricators who switch between standard configurations and advanced gas coverage setups for reactive metals like titanium or stainless steel.

Proper collet performance is paramount for weld quality. A worn or ill-fitting collet can lead to poor electrical contact, resulting in arc wandering, overheating of the torch head, and premature tungsten contamination. The Weldcraft 57N50 provides a concentric and secure grip on 3/16" electrodes, minimizing vibration and maximizing the electrical surface area contact. This pack contains two collets, ensuring that operators have immediate replacements on hand to maintain production continuity and equipment integrity.

Additional Information
Packaging Description:2 PER EA, 2-per-ea
Brand:Weldcraft
Item:Collet
Tungsten Diameter:3/16" (4.8mm)
Material:Copper Alloy
Torch Compatibility:WP-12, WP-17/18/26 (Large Gas Lens), WP-27
Part Number:57N50

INCLUDED

  • 2 x Weldcraft 57N50 3/16" (4.8mm) Collets

APPLICATIONS

  • Heavy structural steel fabrication requiring high amperage.
  • Thick-section aluminum welding using AC TIG.
  • Pipe welding requiring large diameter gas lens coverage.
  • Aerospace and exotic alloy welding with extended tungsten stick-out.
  • Industrial manufacturing using WP-12 or WP-27 series torches.

FAQ

The 57N50 fits WP-12 and WP-27 series torches natively. It also fits WP-17, WP-18, and WP-26 torches ONLY when used with a Large Diameter Gas Lens Collet Body (such as 45V64).

This collet is designed specifically for 3/16 inch (4.8mm) diameter tungsten electrodes.

No. Standard collet bodies on WP-17/18/26 torches use the 10N series collets. The 57N50 is physically larger and requires the Large Diameter Gas Lens collet body.

This product is a pack of 2 collets.

It is manufactured from a high-conductivity copper alloy designed to withstand high thermal loads.

3/16" tungsten is typically used for very high amperage welding (often 350A+) on thick materials like heavy aluminum castings or thick steel plate.

Indirectly, yes. Because it allows the use of Large Diameter Gas Lenses on standard torches, it facilitates significantly better gas coverage and laminar flow compared to standard setups.

Yes, this is a genuine Weldcraft (Miller Electric) product.