Gas Lens Collet Bodies for W-500 / WP-27 TIG Torches (Select Tungsten Size From Options Above)

Replacement gas lens collet bodies for W-500, WP-27A, WP-27B, WP-27BHD, and HW-27 Series TIG torches.
These genuine Miller Weldcraft gas lens collet bodies are designed to securely hold the tungsten electrode and provide consistent shielding gas distribution in compatible high-amperage TIG torch assemblies.

The gas lens design helps straighten and distribute shielding gas around the tungsten electrode and weld area, supporting stable gas coverage and consistent weld quality.

Available in six tungsten sizes from 1/16" (1.6mm) through 1/4" (6.4mm). Select the gas lens collet body that matches the tungsten diameter used in your welding application.

Includes: Insulation/tightening sleeve, Teflon nozzle insulator, and O-ring.

Available Gas Lens Collet Body Sizes

Select the tungsten diameter required for your TIG torch setup from the options above.

Key Features

• Genuine Miller Weldcraft Replacement: Designed for compatible Weldcraft TIG torch assemblies.
• High-Amperage TIG Torch Compatibility: For W-500, WP-27A, WP-27B, WP-27BHD, and HW-27 Series torches.
• Gas Lens Design: Helps distribute shielding gas evenly around the tungsten electrode and weld area.
• Consistent Gas Coverage: Supports stable shielding and helps reduce atmospheric contamination during TIG welding.
• Six Tungsten Sizes: Available from 1/16" through 1/4".
• Replacement Front-End Component: Ideal for maintaining or replacing worn gas lens collet bodies.
• Included Components: Supplied with an insulation/tightening sleeve, Teflon nozzle insulator, and O-ring.

Kit Includes

Compatible TIG Torches

• W-500 Series TIG Torches
• WP-27A Series TIG Torches
• WP-27B Series TIG Torches
• WP-27BHD Series TIG Torches
• HW-27 Series TIG Torches

Additional Compatibility: Genuine Weldcraft replacement components may also be compatible with equivalent TIG torch assemblies from CK Worldwide, WeldTec, ESAB, TecTorch, Radnor, ProStar, BestWelds, TigMaster, Profax, Diamondback, Lincoln, and other manufacturers.

Note: Always confirm the torch model, front-end configuration, and replacement part dimensions before ordering.

Why Use a Gas Lens Collet Body?

A gas lens collet body uses an internal diffuser to help straighten and distribute shielding gas before it exits the TIG torch nozzle. This creates a more uniform gas flow around the tungsten electrode and weld area.

Proper gas coverage helps protect the tungsten electrode and molten weld pool from atmospheric contamination, supporting cleaner and more consistent weld results.

Choosing the Correct Gas Lens Collet Body

The gas lens collet body must match the diameter of the tungsten electrode used in the torch. For example, a 1/8" tungsten electrode requires a 1/8" gas lens collet body and the corresponding collet.

Using the correct size helps ensure proper electrode fit and compatibility with the remaining TIG torch front-end components.

Common Applications

• High-amperage TIG welding
• W-500 TIG torch maintenance
• WP-27 Series TIG torch maintenance
• Gas lens front-end replacement
• Industrial fabrication
• Production TIG welding
• Heavy-duty TIG welding
• Maintenance and repair

Frequently Asked Questions

What TIG torches do these gas lens collet bodies fit?
These gas lens collet bodies are designed for compatible W-500, WP-27A, WP-27B, WP-27BHD, and HW-27 Series TIG torches.

What tungsten sizes are available?
Choose from 1/16" (1.6mm), 3/32" (2.4mm), 1/8" (3.2mm), 5/32" (4.0mm), 3/16" (4.8mm), or 1/4" (6.4mm).

What does the gas lens collet body do?
The gas lens collet body helps distribute shielding gas more evenly around the tungsten electrode and weld area, supporting consistent gas coverage during TIG welding.

What components are included?
Each gas lens collet body includes an insulation/tightening sleeve, Teflon nozzle insulator, and O-ring.

How do I choose the correct size?
Select the gas lens collet body that matches the diameter of your tungsten electrode. For example, use a 3/32" gas lens collet body with a 3/32" tungsten electrode.

Can these parts fit other TIG torch brands?
Genuine Weldcraft replacement components may be compatible with equivalent torch assemblies from other manufacturers. Confirm the specific torch model and front-end configuration before ordering.

Is the tungsten electrode included?
No. This listing is for the gas lens collet body and the specified insulation and sealing components. Tungsten electrodes are sold separately.

What is the existing 1/8" part number?
The 1/8" (3.2mm) gas lens collet body is identified as 49V25.