86Z03 - ESAB HW-12 TIG Nozzle #10 (5/8 Inch)

Heavy-Duty #10 Cup for Your HW-12 Torch

If you are running an HW-12 water-cooled torch, you know you are doing serious work. You aren't welding thin sheet metal in a garage; you are likely pushing high amps on heavy plate or pipe. The ESAB 86Z03 is the #10 cup you need to keep that arc stable and your puddle clean. A #10 cup gives you a 5/8-inch opening, which is perfect when you need to stick your tungsten out a bit further to see what you're doing or when you need that extra wide gas coverage to keep the heat-affected zone shiny and free of oxidation.

We all know the frustration of dropping a torch or having a cup crack just from the heat cycling. While no ceramic is indestructible, ESAB's OEM cups are built tougher than the cheap generic knock-offs. This cup handles the reflected heat from a 300+ amp puddle without shattering halfway through a pass. It screws on smooth and stays tight, so you don't have to worry about it rattling loose while you are walking the cup. The ceramic material also resists spatter buildup, making it easier to clean if you do get a little pop.

When you are welding critical joints, your gas coverage is everything. A restricted or turbulent gas flow caused by a damaged or poorly made cup can lead to porosity and failed X-rays. By using the correct ESAB 86Z03 nozzle, you ensure smooth, laminar flow right where you need it. It’s a small part of your setup, but it makes a huge difference in the final look and quality of your beads. Keep a few of these in your toolbox so you are never stuck waiting on parts when the hood is down.

Why Welders Choose This Cup:

• Perfect Fit: Threads on clean to your HW-12 collet body.
• Great Coverage: 5/8" opening covers a wide wash.
• Durable: Handles high-amp heat without cracking easily.
• Consistent: Uniform wall thickness for even heat distribution.