This product is made up of three parts: the main scale, the slider and the multifunction ruler. The HJC40B gauge is a kind of welding inspection gauge, which is used to detect various groove angles, welding height, welding clearance and welding plate thickness.It is suitable for the inspection of welding quality of boilers, bridges, chemical machinery, shipbuilding and pressure vessels.

This gauge is made of stainless steel, with reasonable structure, beautiful appearance, convenient use and wide measuring range.

Maintenance method

1. The welding inspection ruler shall not be piled together with other tools, in case the ruler is deformed and scratched, causing blur scale and reducing precision.

2. Do not wipe the scale with amyl acetate.

3. The gap ruler on the multifunction ruler shall not be used as screwdriver.