Accurate weld sizing is one of the simplest ways to prevent rework, under-welding, over-welding, and failing visual inspection. The Profax WFG Fillet Gauge Set provides precise, durable gauges in both inch and metric, sized for the welds most fabricators measure day-to-day. This review covers what the set includes, how it performs, and why instructors, shops, and mobile welders rely on dedicated fillet gauges instead of eyeballing weld size.
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 qualityโreliable, rugged, no flex.
Where to Buy
Arc Weld Store: $35.15 In Stock
Profax WFG Metal Weld Fillet Gauge Set
Profax WFG, Metal Weld Fillet Gauge Set, (1/8" – 1") Metric & Inch, 1 Set
Amazon:
- ใ7 pieces Weld Fillet Gaugesใ: 7 pieces weld fillet gauges are held by bolt and nut that can be disassembled, each weld gauge can be used to check the size of fillet legs and fillet throats
- ใHigh Quality Materialใ: Welding inspection gauge is made of stainless steel material, sturdy, durable and not easy to deform, can be used for a long time. The brushed surface makes it more beautiful and durable
- ใAccurate Measuringใ: Laser scale makes it clear and accurate, easy to read. The welding gauge is available in both imperial and metric scales and has a measuring range of 1/8โ (3.2mm), 3/16โ (4.8mm), 1/4โ (6.4mm), 5/16โ (7.9mm), 3/8โ (9.5mm), 7/16โ (11.1mm), 1/2โ (12.7mm), 5/8โ (15.9mm), 3/4โ (19.1mm), 7/8โ (22.2mm), 1โ (25.4mm)
- ใProduct Sizeใ: The size of gauge is about 4.01inches(102mm) long, 1.26inches(32mm) wide. Compact and easy to carry. When not in use can be adjusted by adjusting the bolt and nut to fix for easy storage.
- ใWide Applicationใ: The 7-piece weld gauge is used to measure weld quickly and accurately! It is widely used in many fields of inspection such as boilers, bridges, shipbuilding, pressure vessels and oil field pipelines. It is also suitable for completing a welding school class.
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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.
Whatโs Included
Profaxโs gauge sets vary slightly by package, but their standard WFG kit includes:
- Multiple fillet weld leaf gauges (commonly 1/8″โ1″ โ 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 Profaxโs 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 wonโt 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 pocketโno 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 measuringโavoid 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?
Yesโstandard 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.
Whatโs 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 themโjust confirm the variant ArcWeld stocks.
Do fillet gauges replace visual inspection?
No. They support visual inspection by providing quantitative measurement.
