RIVERWELD Bridge Cam Gage Welding Inspection Gauge Bridge Cam Gage Welding Measurements are possible in either inches or millimeters General Linear Measurements up to 2"(50mm) Angle of preparation. Depth of pitting. Fillet weld length. Fillet weld throat size Excess weld metal(capping size) Depth of undercut Misalignment(high-low)