1422-0091 - 9/16-18 UNF Rethreading Die for Oxygen Fittings

Save Your Torch and Regulator Threads

Every welder knows the frustration of a crossed thread. You're setting up for a job, rushing to switch out a regulator or connect a new hose, and suddenly the nut won't spin freely. Forcing it only makes it worse, and before you know it, you're looking at a stripped fitting on an expensive piece of equipment. The Victor 1422-0091 9/16"-18 UNF Die is the tool that saves the day—and your gear. Designed specifically for the standard "B" size fittings found on oxygen and argon equipment, this die allows you to clean up and restore damaged threads, bringing your equipment back to life instantly.

Why Thread Integrity Matters
In oxy-fuel and gas welding, a tight seal isn't just about efficiency; it's about safety. A damaged thread on a regulator outlet or torch inlet can prevent the hose nut from seating fully against the gland. This gap, however microscopic, can lead to gas leaks. With oxygen, leaks create a severe fire hazard; with shielding gases like Argon, they lead to porosity in your welds and wasted money. By running this Victor die over your threads during routine maintenance, you ensure that every connection is smooth, secure, and leak-free.

Built for the Shop Environment
Victor has manufactured this die from tough, high-quality steel that can handle the rigors of the shop. It is designed to cut through grit, grime, and slight metal deformations that occur from dropping a torch or dragging hoses across the floor. It is compact enough to fit in your toolbox or pocket, ready for whenever a fitting puts up a fight. Note that this is a 9/16"-18 UNF die, which is the standard for Right-Hand threads (Oxygen/Inert). It is not for Acetylene/Fuel fittings (which are Left-Hand). Always check your fitting before using the tool.

How to Use
Simply secure the part you are repairing in a vise (using soft jaws to protect the brass), apply a little cutting fluid or light oil to the threads, and carefully start the die by hand to ensure it catches the original thread path. Use a wrench or die stock to turn it slowly. If you feel significant resistance, back it off a quarter turn to clear chips, then proceed. It’s a simple process that can save you hundreds of dollars in replacement parts.