The Problem: Worn Consumables Kill Weld Quality
TIG torches demand precision. A single worn nozzle, cracked collet, or degraded gas lens throws off your shielding, creates porosity, and wastes time re-striking. Most welders wait until failure to replace consumables—a costly mistake.
The Alffun 58-piece TIG gas lens kit eliminates guesswork. It’s a complete replacement set for WP-17, WP-18, and WP-26 torches, covering every consumable you’ll need in one purchase.
What’s Inside the Kit
- 20 collets (various sizes for different electrode diameters)
- 8 collet bodies (stubby and standard)
- 25 alumina gas cups/nozzles (#12 standard size)
- 3 back cups (torch head protection)
- 2 gaskets (seal integrity)
This breadth means you’re covered for electrode swaps, torch repairs, and emergency replacements without waiting for shipping.
Why Gas Lens Matters for Shielding
A gas lens distributes argon evenly around the electrode. A worn lens creates dead zones—areas where shielding gas doesn’t reach the weld pool. Result: oxidation, porosity, and weak beads.
The alumina nozzles in this kit are durable and resistant to spatter buildup. They maintain consistent gas flow across multiple welding sessions.
Compatibility & Fit
Torch Models Supported:
- Lincoln PTA-17, PTA-18, PTA-26
- Miller WP-17, WP-18, WP-26
- ESAB WP-series torches
- Most aftermarket WP-compatible torches
Electrode Sizes: The 20 collets cover 0.020″ to 3/32″ (0.5mm to 2.4mm) electrodes.
Gas Type: Argon (standard TIG shielding gas).
Performance & Use
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What to Compare Before You Buy
- Nozzle Material: Alumina vs. ceramic vs. copper. Alumina (this kit) resists spatter better but is more brittle; ceramic is softer; copper conducts heat faster but wears quicker.
- Collet Variety: Does the kit include stubby collets? (Yes, 8 total.) Stubby collets reduce heat and improve control in tight spaces.
- Quantity & Price Per Unit: 58 pieces at ~$25–$35 = ~$0.43–$0.60 per consumable. Compare to buying individual nozzles at $2–$5 each.
- Torch Compatibility: Verify your torch model (WP-17/18/26 or equivalent). Check your manual or torch label.
- Warranty & Returns: Check Amazon return policy; most consumables kits allow 30-day returns for defects.
Comparable Amazon Picks (Optional)
-  RIVERWELD TIG Gas Lens Kit (31-Piece) (ASIN: B09LQXJ5ZY) — Smaller set, fewer collets, ~$20. Good for occasional welders.
-  Weldtec TIG Torch Consumables Kit (81-Piece) (ASIN: B0G1HVP7D2) — Larger set, more nozzles and cups, ~$40. Best for high-volume shops.
How to Install Consumables
- Disconnect the torch from the power source and gas supply.
- Unscrew the back cap (large nut at the torch head).
- Remove the old collet and nozzle by hand or with a small wrench.
- Insert the new collet into the torch body (small end first).
- Slide the new nozzle over the electrode and collet.
- Screw the back cap hand-tight, then snug with a wrench (do not over-tighten).
- Reconnect gas and power.
Test with a scrap piece before production welding.
Storage & Shelf Life
Store consumables in a dry, cool place. Alumina nozzles don’t degrade over time, but collets can crack if dropped or over-torqued. Keep extras in a labeled container for quick access.
When to Replace Consumables
- Nozzle: Spatter buildup reduces gas flow; clean with a soft brush or replace if cracked.
- Collet: Replace if it no longer grips the electrode firmly or shows visible cracks.
- Gas Lens: Replace if the electrode no longer sits centered in the nozzle.
