The HJC40 Welding Inspection Gauge is a precision stainless steel measuring tool designed for professional weld inspection and quality control. It accurately measures weld height, fillet weld size, undercut depth, bevel angle, gap width, and weld seam dimensions, making it ideal for inspecting boilers, bridges, pipelines, pressure vessels, ships, and structural steel fabrication. Compact, durable, and easy to use, it is an essential tool for welding inspectors, NDT technicians, and fabrication professionals.
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Product features
Professional multi-function welding inspection gauge
Measures weld reinforcement height, fillet weld height, and throat thickness
Measures weld seam width and root gap
Measures undercut depth with high precision
Measures bevel angles from 80° to 160°
Surface height measurement range: 0–15 mm
Weld width measurement range: 0–60 mm
Undercut depth range: 0–5 mm
Gap measurement range: 0.5–6 mm
Precision tolerance up to ±0.1 mm depending on measurement type
Compact portable design for field and workshop inspections
Ideal for boilers, pressure vessels, bridges, pipelines, shipbuilding, and structural steel fabrication
Suitable for welding inspectors, QA/QC professionals, fabricators, and NDT technicians
Materials and care
Manufactured from high-quality stainless steel for corrosion resistance and long service life
Precision-engraved measurement scales for accurate readings
Wipe clean with a soft dry cloth after each use
Store in a protective case or dry toolbox when not in use
Avoid dropping or exposing the gauge to impacts that may affect calibration
Keep measuring surfaces free of dirt, oil, and welding debris for maximum accuracy
Do not use abrasive cleaners or corrosive chemicals on the stainless steel surface
