The gauge has SKEW-T fillet weld calculator in order to converting the measurement readings to theoretical readings. Stainless steel gauge body ensure durability, it is not easy to bend. Printing ensures that the scales and numbers are clear and not easy to wear. Made of stainless steel material Replaces all other sets of gauges used to measure fillet or groove welds. Welding gage inspection acute & obtuse side bevel angle with calculator card metric reading stainless steel.