Co-link MG-11 Metal Weld Fillet Gages Set (7PCS) 1/8''-1'' Welding Inspection Test Ulnar MM & inch Permits quick and accurate measuring of the most popular. Stainless steel, long usage life. Checking fillet leg size and fillet throat size. Increments standard and metric equivalents etched into the surface for clarity and easier reading. Fillet sizes in imperial:1/8''-1'' and metric:( 3.2-25.4mm)