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Jason Marburger


Welding Tips & Tricks Podcast (Ft. Jason Marburger)

Learn how Jason got his start in welding and how Fireball Tool Was Created.


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Welder's unlikely invention leads to a growing business

This is what happens when a welder decides to ditch a carpenter’s tool

SEPTEMBER 21, 2017

Welder Jason Marburger couldn’t really understand why he was using a squaring frame, just like a carpenter, as he worked on projects over the years. One day he decided to design a better tool. Today the welder is also a welding equipment entrepreneur.


Figure 1 
Sometimes a framing square can fool a welder into thinking that a fit-up is truly at 90 degrees because the square can be manipulated slightly to make it truly look like a right angle. The Fireball Tool’s size prevents such mistaken readings.

From the first automobiles to the world’s tallest buildings, welders have often played a critical role in bringing innovative ideas to life. It makes sense then that a welder would invent a tool that offers a new method for making square welds and fabricating parts with challenging angles (see Figure 1).

If You Don’t Have It, Make It

Over the course of his welding career, 36-year-old Jason Marburger (see Figure 2) has burned countless rods in every capacity, from automotive fabrication to commercial ironwork construction to mobile welding. Marburger has worked alone and managed crews over the years. Today he works as a contractor. Through it all he has wondered why welders often are limited to using carpenter’s tools that never fully meet their needs.

“They give you a flat welding table and ask you to build and weld with a speed square and primitive tools. I always thought there had to be a way to clamp things to it,” he said.

He started his latest job in Spokane, Wash., with the intent of customizing his welding table to better serve his skills. Marburger wanted a welder-specific square that was designed with weld accessibility, able to accommodate offsets, and constructed of a material that could withstand the heat and abuse of welding. With the goal of making his job a little easier, he sketched out a rudimentary design for something that would meet any needs he might encounter on the job. The next day he had a friend cut the parts with a plasma cutter, then welded a prototype, and immediately put it to work. It didn’t take long to draw interest from co-workers and others in the shop.

“It worked well. Everyone immediately wanted to check it out, and I thought I might have something here,” Marburger said.

From the Welding Table to the Web

When a local welding supply salesperson learned about Marburger’s creation, he asked him to demonstrate it at the company’s open house. He dove headfirst into the world of entrepreneurship and in only two weeks threw together a website, built a brand, and hustled to create a small inventory of products to present.

“I welded my butt off; showed up at the event; flopped down the tailgate; and was right there with all the big boys like Miller, Lincoln, and ESAB,” Marburger said.

He said his custom-designed square drew interest from welders, buyers, and other manufacturers. Leaving with new contacts, new ideas, and a greater awareness of his product’s potential, he set out to design a more accurate and repeatable square.

He immediately faced the challenges of balancing a full-time welding job with becoming an after-hours entrepreneur. Marburger sold his pickup trucks to raise capital for the first orders and managed most of the growth himself, building the business on a limited budget and with a do-it-yourself attitude.


Figure 2 
Jason Marburger poses with a couple of squaring tools from the family of welding products he has created.

With an avenue for more production, he started promoting and growing his Fireball Tool through application videos on his YouTube channel.

“Within the few weeks of someone showing my tool on YouTube, I was selling hundreds of units,” said Marburger. “It has been growing ever since.”

The tool has been starting to receive interest from larger organizations that buy multiple tools for their entire team of welders. Inquiries also have come from as far away as Australia and New Zealand.

Bringing Tools to Market

The tool is under a patent application, something he said has been a “roller coaster ride.” He has been reinvesting nearly all of the money from tool sales back into the business and also has a dozen new designs that he would like to test and prototype in the future.

“Because I have a day job, I don’t have to pull from Fireball. I’m just reinvesting to buy more molds, improve my products, and create new ones,” he said.

The tool variations can be used alone or in conjunction with each other to handle nearly any type of weld or joint a fabricator might encounter, according to Marburger. The company now has more than a dozen products and combinations, including preassembled tools and kits that are precut and can be welded together.

Marburger said the tools can be used in many ways that traditional squares cannot, as different angles, access points, and lengths allow them to be used in multiple capacities. Angles and squares also can be clamped together (see Figure 3) to create tools up to 2 feet long to assist in various welding functions. The dedicated-angle fixture has no pivot point in the corner, allowing weld access inside and outside, and it can be adjusted to serve as a fixturing device for cutting, grinding, and gas tungsten arc welding (GTAW).

“Having a tool that was really versatile, valuable, and could accommodate many angles was important. It can be used on a welding table, on sawhorses, or a man basket,” Marburger said. “We’re welders. We need to be able to weld what we put together. And we need to be able to quickly check it to ensure it is square.”

Fireball Tool,

Freelance writer Craig Guillot can be reached at


Figure 3 
Configured in the right way, the squaring tools provide the access needed, while simultaneously providing confidence that the fabrication is at a precisely 90-degree angle.


Fireball Tool Frequently Asked Questions


1. Do you ship Internationally/Canada/Alaska/Hawaii?


Yes, for international orders please visit




2. What are the dimensions of the squares?


The Mega 12 and Monster 12 squares are 12" x 12 " x 3".  Approximate metric unit conversion is 305 x 305 x 76 mm.  
The Mega 8 and Monster 8 square are 8" x 8" x 1.5".  Approximate metric conversion is 203 x 203 x 38 mm.
3. What size square should I get? 8" or 12"?
Size of square should be determined on the size of material being used. Applications with material less than 2" works best with the 8" square. Applications with material larger than 2" works best with the 12" square.




4. What to pick, Aluminum or Cast Iron?




Cast Iron is heavy duty and is best for high production, high-use applications. Aluminum is lighter and is best for wood working, off the table welding situations (like on sawhorses), and applications where rust may be an issue.   Please see our video about this topic on our youtube channel.  Cast Iron or Aluminum?




5. Do you have a video of tips and tricks for using the squares?
View all of Jason's tips and tricks for using the Mega and Monster square here.  Tips on Using Squares




6. Do the squares come with tabs?




Yes, all squares come with tabs. Mega 12 and Mega 8 squares come with 4 tabs each, Monster 12 and Monster 8 squares come with 3 tabs each.




7. How do you keep the squares from rusting?




Keep squares away from moisture as much as possible. Use any good quality rust inhibitor to keep rust from forming.




8. Is Cast Iron magnetic?




Yes, Cast Iron is magnetic. Cast Aluminum is not.




9. Is there a shipping cutoff time?




If you place an order before 9am Pacific, we'll be able to ship it out on that same day. Orders placed after this time will be shipped the following day.




(Due to COVID-19, Fireball Tool will only be shipping on Mondays and Thursdays starting 3/26/2020 STAY SAFE EVERYONE)


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