84Z31 - ESAB 84Z31 Short Back Cap for HW-90 TIG Torch (2-Pack)

Get Into Tight Spots with the ESAB 84Z31 Short Back Cap

Every TIG welder knows the frustration of trying to lay a perfect bead in a cramped space, only to have the back of the torch bump against a wall or a pipe. The standard long back cap is great for using full-length tungsten, but it adds significant length to your torch setup. That is where the ESAB 84Z31 Short Back Cap comes in to save the day. Designed specifically for the legendary HW-90 TIG torch, this "button" style cap reduces the overall length of your torch head, giving you the clearance you need to maneuver in tight corners, inside pipes, or around complex automotive headers.

This convenient 2-pack ensures you always have a spare in your toolbox. When you switch to a short back cap, you will need to trim your tungsten electrode down, but the trade-off is superior access and control in difficult positions. A short cap also shifts the balance of the torch slightly, which some welders find reduces wrist fatigue during out-of-position welding. These caps are made from durable, heat-resistant materials that won't crack or deform under the high temperatures of industrial TIG welding, ensuring your torch stays operational shift after shift.

Don't overlook the importance of the O-ring seal on your back cap. A worn or cracked cap can leak shielding gas, leading to expensive wasted argon and frustrating weld defects like porosity. By using genuine ESAB replacements, you guarantee a perfect seal every time you tighten down on your tungsten. Whether you are maintaining a fleet of HW-90 torches or just keeping your personal rig ready for anything, these short back caps are an essential accessory for versatile fabrication work.

Why Welders Choose the 84Z31:

• Access: Fits where standard torches can't.
• Durability: Tough material handles the heat.
• Reliability: Genuine ESAB fitment prevents gas leaks.
• Value: Comes in a pack of 2 so you are never caught without one.