17-Piece TIG Welding Torch Kit for WP-17/18/26: Complete Consumables Breakdown

TIG welding requires precision, and that starts with the right torch consumables. This 17-piece kit covers the essential nozzles, collets, and tungsten electrodes you need to set up and maintain WP-17, WP-18, and WP-26 torches without constant trips to the supply house.

What’s Included

The kit bundles five gas lens cups (sizes #4 through #8), three collet bodies (1.0mm, 1.6mm, 2.4mm), three back cups (short, middle, long), and three tungsten electrodes (1.0mm, 1.6mm, 2.4mm). Each piece is sized for standard argon TIG work.

Last update on 2026-03-27 / Affiliate links / Images from Amazon Product Advertising API

What to Compare Before You Buy

• Cup size range: Verify the kit covers your electrode diameter (1.0mm, 1.6mm, or 2.4mm).
• Material compatibility: Alumina nozzles work for argon; check if your machine uses argon-only or mixed gas.
• Collet fit: Confirm collet sizes match your torch model (WP-17/18/26 series).
• Tungsten type: This kit includes pure tungsten (WP); for AC welding, pure tungsten is standard. For DC, ER/EWTh-2 is often preferred.
• Backup stock: Consider ordering two kits to avoid downtime during replacements.

Comparable Amazon Picks (Optional)

• RX WELD 87-Piece TIG Torch Accessories Kit — Larger multipack with stubby gas lens options (ASIN: B0BN82RMQG)
• ARCCAPTAIN 71-Piece TIG Consumables Kit — Budget-friendly alternative with extra nozzles (ASIN: B0CLRPJVG7)

Performance & Use

Nozzle sizing: The five nozzle sizes (#4–#8) correspond to cup diameters from 6.5mm to 12.5mm. Larger cups protect the weld pool in high-amperage work; smaller cups suit precision joints. Alumina nozzles are durable and resist thermal shock.

Collet bodies: The three sizes (1.0mm, 1.6mm, 2.4mm) fit standard tungsten electrodes. Collets must grip the electrode firmly to prevent arc instability. Replace if they show wear or if the electrode spins during striking.

Tungsten electrodes: Pure tungsten (WP) is ideal for AC welding because it forms a stable ball at the tip. For DC electrode-negative (DCEN), consider upgrading to thoriated or lanthanated tungsten for better arc starting and longevity.

Back cups: The three back cup sizes (short, middle, long) control gas coverage. Use the short cup for tight spaces, the middle cup for standard work, and the long cup for maximum shielding in high-wind conditions or when welding aluminum.

Compatibility Check

This kit fits WP-17, WP-18, and WP-26 torches, which are among the most common TIG torch models. Verify your torch model before ordering. If you use a different torch series (SR, DB, PTA), check the product listing for compatibility.

Storage & Maintenance

Store nozzles and collets in a dry container to prevent oxidation. Tungsten electrodes should be kept clean and dry; contamination reduces arc quality. Inspect collets before each use—replace if bent or worn.

When to Replace

• Nozzles: Replace when eroded, cracked, or discolored from heat.
• Collets: Replace when they no longer grip the electrode or show visible wear.
• Tungsten: Blunt or contaminated electrodes should be re-sharpened or replaced.

FAQ

Q: Can I use these nozzles with a gas lens?
A: Yes, the nozzles in this kit are compatible with standard gas lens assemblies. Gas lenses improve shielding and allow tighter torch angles.

Q: What gas should I use?
A: Pure argon is standard for most TIG work. For stainless steel and aluminum, argon with 1–5% hydrogen or helium is common. Check your machine’s manual.

Q: How long do tungsten electrodes last?
A: Depends on use. A sharpened electrode can last 1–2 hours of active welding. Contaminated or blunt electrodes should be replaced.