The fillet weld gauge is the most used measuring device in the welding inspector’s kit. That is understandable considering the majority of the welds deposited are fillet welds.
The principle of the fillet gauge is pretty simple. The fillet weld has a cross-section that is essentially a triangle.
Fillet Weld Gauge allows fast, accurate measurement of eleven (11) fillet weld sizes: 1/8, 3/16, 1/4, 5/16, 3/8,7/16, 1/2, 5/8, 3/4, 7/8, and 1″, and their metric equivalents, to determine weld sizes, either concave or convex
Each gauge blade is made of 1-1/4″ x 4″ cold-rolled stainless steel to resist rust and bending. Blades are deburred to remove rough edges. All sizes and numerals are engraved into the surface for easier reading. The set of seven blades comes in a handy 2″ x 4 1/2″ pocket case weighing only 4 oz.