Vernier Type Welding Seam Gauge – PTAWG18A
The vernier type welding seam gauge is a precision inspection tool used to measure weld dimensions quickly and accurately. Fabricators, welders and inspectors use this gauge to verify weld size and profile during production or final inspection.
The gauge features a sliding vernier scale that provides accurate measurement readings. The design allows operators to check several important weld features using one compact tool.
This gauge measures fillet weld leg length, throat thickness, undercut depth and crown height. Many gauges also allow checks on weld reinforcement and weld profile. The vernier scale provides fine measurement accuracy, making it suitable for workshop or site inspection work.
The body is made from stainless steel for strength and durability. Stainless construction prevents corrosion and maintains accuracy in demanding workshop environments. The sliding scale moves smoothly and locks in position using a fastening screw or thumb nut.
Operators can quickly measure weld size by placing the gauge against the base material and adjusting the slider until it contacts the weld. The reading on the vernier scale provides an accurate measurement of the weld dimension.
Many welding seam gauges also include built-in angle checks. These commonly measure angles between 60° and 90°. This feature allows inspectors to quickly verify weld preparation or joint angles.
These gauges typically measure weld sizes across a common inspection range used in fabrication work. They suit structural steel fabrication, pipe welding, pressure vessel work and general engineering applications.
Vernier welding seam gauges remain one of the most versatile weld inspection tools available. They allow fast, reliable measurement without complicated setup or additional equipment.
Common types of welding inspection gauges include the Bridge Cam Gauge, the HJC-40 and HJC-30 multi-purpose vernier gauges, and the AWS weld gauge. Each type checks different weld features such as undercut, crown height, weld reinforcement and fillet leg size.
This tool is an essential addition to any welder’s or welding inspector’s inspection kit.
