Key Takeaways

• Stainless steel gauge set covers common fillet weld sizes in inch and metric.
• Laser-etched markings improve readability and durability.
• Compact leaf-style stack ideal for shop use, field work, and welding classes.
• Helps prevent overwelding (wasted wire/time) and underwelding (failed inspection).
• Profax build quality—reliable, rugged, no flex.

Where to Buy

Arc Weld Store:
Profax WFG Metal Weld Fillet Gauge Set

Profax WFG, Metal Weld Fillet Gauge Set, (1/8" - 1") Metric & Inch, 1 Set

$35.15

In Stock

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Profax WFG Fillet Gauge Set: Overview

The Profax WFG set is designed to measure fillet weld leg size and throat thickness accurately. In schools, shops, and inspection environments, consistent sizing is non-negotiable. This set eliminates guesswork and provides a reliable mechanical standard you can trust.

These leaf-style gauges unfold quickly and lock back into a compact stack when not in use, making them easy to pocket while welding or walking the floor.

What’s Included

Profax’s gauge sets vary slightly by package, but their standard WFG kit includes:

• Multiple fillet weld leaf gauges (commonly 1/8″–1″ — Exact count/spec: Unknown; verify based on final Profax listing)
• Both metric and inch sizing
• Stainless steel leaves
• Laser-etched measurement markings
• Compact stacked pivot assembly with lock screw

If you need the exact leaf sizes listed, I can add them once confirmed from Profax’s downloadable spec sheet or the ArcWeld catalog entry.

Build Quality & Usability

Profax tools are known for being no-nonsense and durable, and this set follows that pattern.

Materials

• Stainless steel gauges resist bending and damage.
• Laser-etched markings won’t rub off like cheaper printed sets.

Accuracy

Fillet gauges are trusted in shops because they provide:

• Standardized measurement
• Repeatable results between welders
• Quick visual confirmation for inspectors

Even advanced welders rely on gauges to prevent error when running repetitive joints.

Field Use

The compact leaf-stack format works well for:

• Railings & fab work
• Field repairs
• Mobile welding trucks
• Classroom demonstration
• QA/QC spot checks

You can clip it to a lanyard or keep it in a jacket pocket—no snag, no bulk.

Why Welders Use Fillet Gauges

Undersized welds fail inspection.
Oversized welds waste filler metal, time, and heat.

Using a fillet gauge:

• Standardizes weld quality
• Reduces cost in MIG & Stick processes
• Speeds up training for new welders
• Ensures consistency across shifts or multiple welders
• Helps meet AWS weld profile requirements (see AWS D1.1 Annex for typical sizing criteria)

For schools and shops that teach visual inspection, this is one of the most critical low-cost tools.

Best Applications

• Structural welding
• Welding tests & certification practice
• Railings, frames, brackets
• Multi-welder production shops
• Weld inspection training
• Quality control checklists
• Repair work needing fast validation

Safety Notes

• Always allow welds to cool before measuring—avoid contact burns.
• Keep gauges clean to maintain accuracy; slag or spatter buildup can alter readings.
• Follow ANSI Z49.1 for PPE when handling freshly welded components.
• For official inspection, match gauge readings with your AWS codebook acceptance criteria.

FAQ

Does this gauge set measure both leg size and throat?

Yes—standard fillet gauge leaves include sizing for leg length and effective throat.

Are the markings etched or printed?

Profax uses laser-etched stainless steel for durability and readability.

Is this set suitable for welding students?

Yes. Instructors often require gauges to teach weld sizing accuracy, preventing bad habits early.

What’s the size range?

Typical Profax WFG kits cover 1/8″ to 1″ (inch) with metric equivalents.
If you want exact leaf sizes listed, I can add them—just confirm the variant ArcWeld stocks.

Do fillet gauges replace visual inspection?

No. They support visual inspection by providing quantitative measurement.