Feature 1Thick steel, strong and durable, long service life. 2Quick welding seam size template, easy to use. 3High accuracy and efficiency, a good welding seam testing tool. 4It can be used to quickly and correctly measure the sizes of most common welds. 5Used to measure the thickness of fillet weld and the size of weld foot.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 x 3.3cm or 1.7 x 1.3in Throat Gauge: (approx.) 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 12.0mm or 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 or 0.16 '', 0.24 '', 0.30 '', 0.39 '' , 0.47 '', 0.55 '', 0.63 '', 0.71'' Package List: 2 x Welding Gauge