·用于测量凸形和凹形焊缝的有效焊脚尺寸·包含七片·不锈钢尺身·51-433-157:3,4,5,6,8,9,10,11,12,14,16,19,22,25mm·51-433-158:1/8"(3.2mm),3/16"(4.8mm),1/4"(6.4mm),5/16"(7.9mm),3/8"(9.5mm),7/16"(11.1mm),5/8"(15.9mm),3/4"(19.1mm),7/8"(22.2mm),1"(25.4mm)