How do you measure a 10mm filet weld?

To measure a 10mm fillet weld, use a caliper or a weld gauge to check the leg size, which should be 10mm from the root of the weld to the toe on each side. Additionally, ensure that the weld's throat thickness meets specifications, typically calculated as 0.707 times the leg length for a right-angle fillet weld. It's important to verify that the weld conforms to the relevant standards and tolerances in your specific application.