Stainless Steel Sheet Metal Thickness GaugeAdditional Notes:* Stainless steel thickness gauge used for checking sheet metal.* Sizes and numerals are etched into the surface for durability..* Provides quick and accurate measuring.* Measuring Slots For: 24GA (.0239) 22GA (.0299) 20GA (.0359) 18GA (.0478) 16GA (.0598) 14GA (.0747) 1/8″ (.0125) 10GA (.1345) 3/16″ (.1875) 1/4″ (.250) 5/16″ (.3125) .024″ .030″ .035″* Dimensions (LxW): 2-13/16″ x 1″ (73mm x 25mm) MPJA35873 TL