Features: Thick steel, strong and durable, long service life. Quick welding seam size template, easy to use. High accuracy and efficiency, a good welding seam testing tool. It can be used to quickly and correctly measure the sizes of most common welds. Used to measure the thickness of fillet weld and the size of weld foot. Specification: Material: Stainless steel Size: 4.4 * 3.3cm / 1.7 * 1.3in Throat Gauge: (approx.) 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 12.0mm / 0.16 '', 0.20 '', 0.24 '', 0.28 '', 0.31 '', 0.35 '', 0.39 '', 0.47'' Leg Gauge: (approx.) 4.0, 6.0, 7.5, 10.0, 12.0, 14.0, 16.0, 18.0mm / 0.16 '', 0.24 '', 0.30 '', 0.39 '' , 0.47 '', 0.55 '', 0.63 '', 0.71'' Package List: 2 x Welding Gauge