ITEM NAME:5-40Mm Gauge Weld Bead Height Welding Seam Space Gauge Welding Inspection R P5Z2 5-40Mm Gauge Weld Bead Height Welding Seam Space Gauge Welding Inspection R P5Z2 Available in metric and imperial systems. Not easy to bend, accurate reading, clear line. Suitable for products with high welding quality requirements, such as boilers, pressure vessels, etc. A special measuring tool used to measure the groove angle of the weld and the width, height and weld joint of the weld. Name:Welding calibration ruler Measuring Range:5-40mm Size:72*52mm DIY Supplies: Metalworking Colour:Silver Material:Stainless Steel Package Contents: 1*Gage Welding Inspection Ruler.1 Gage Welding Inspection Ruler. Not easy to bend, accurate reading, clear line.