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54N20 - Weldcraft 54N20 5/32" (4.0mm) TIG Collet - 5 Pack

Packaging: 5 per ea
$8.50/ea

Package Price:

$45.10/5 per ea

Usually ships within 3-5 business days

SKU: MIL54N20 Categories: ,

OVERVIEW

Precision Engineering for High-Amperage TIG Welding

The Weldcraft 54N20 Collet is a critical component designed to facilitate the transfer of welding current to the tungsten electrode while maintaining precise alignment within the gas cup. Engineered specifically for 5/32-inch (4.0mm) diameter tungsten electrodes, this collet is an essential consumable for fabricators utilizing 17, 18, and 26 series TIG torches. As a genuine Weldcraft product, it meets stringent manufacturing tolerances, ensuring that the electrode is gripped securely without slippage, which is vital for maintaining a stable arc and consistent weld bead profile.

Constructed from a high-conductivity copper alloy, the 54N20 collet excels in thermal management. During high-amperage welding operations typical of 5/32-inch electrodes, significant heat is generated at the collet-tungsten interface. Inferior collets often suffer from thermal deformation or twisting, leading to poor electrical contact and arc instability. The Weldcraft 54N20 is built to withstand these thermal cycles, retaining its shape and mechanical tension longer than generic alternatives. This durability translates to reduced downtime for consumable changes and more arc-on time for the operator.

Compatibility is a key feature of the 54N20. It is universally designed to fit the industry-standard 3-Series consumable systems found on air-cooled 17 and 26 series torches, as well as water-cooled 18 series torches. This cross-compatibility simplifies inventory management for workshops that utilize multiple torch configurations. Whether you are welding heavy aluminum sections or thick stainless steel plate, the reliability of the collet directly impacts the quality of the weld. By ensuring a concentric hold on the tungsten, the collet aids in proper gas coverage and reduces the risk of turbulence in the shielding gas stream.

This product is supplied in a package of five, acknowledging the consumable nature of the component. Even high-quality collets eventually wear due to the mechanical stress of tightening and the thermal expansion and contraction cycles. Having a fresh pack of 54N20 collets ensures that maintenance personnel and welders can immediately rectify performance issues related to worn torch components, maintaining the high standards expected in industrial welding environments.

Additional Information
Packaging Description:5 PER EA, 5-per-ea
Brand:Weldcraft
Item:Collet
Diameter:4-0mm
TIG Series Compatibility:17 Series, 18 Series, 26 Series
Material:Copper Alloy
Tungsten Size:4.0mm, 5/32 inch

INCLUDED

  • 5 x Weldcraft 54N20 Collets (5/32" / 4.0mm)

APPLICATIONS

  • Heavy industrial fabrication
  • Structural steel welding
  • Aluminum ship repair
  • Pipe welding with heavy wall thickness
  • General maintenance and repair (MRO)
  • Aerospace component welding

FAQ

The 54N20 collet is compatible with 17, 18, and 26 series TIG torches, including both air-cooled and water-cooled models.

This collet is designed specifically for 5/32-inch (4.0mm) diameter tungsten electrodes.

This product is sold as a package of 5 collets.

Yes, this is a genuine Weldcraft (Miller) replacement part, ensuring high quality and proper fitment.

The collet is manufactured from a high-conductivity copper alloy designed to withstand welding heat.

Collets can twist due to excessive heat or overtightening the back cap. Using genuine parts like the 54N20 helps resist thermal deformation better than generic options.

Standard collets like the 54N20 are typically used with standard collet bodies. Some gas lens setups require specific gas lens collets, so check your torch diagram, but often the collet remains the same for standard gas lenses in this series.

Yes, you must use a collet body that matches the 5/32" (4.0mm) size and is compatible with 17/18/26 series torches.