Pigskin Drivers Gloves, Economy Grain Pigskin, Medium, Unlined no checkout and brazing applications Ensures pressure tight connections and brazing applications Ensures pressure tight connections made in seconds Built in automatic reset check valves prevent reverse flow of gas by cutting off the gas under back pressure Oxygen and fuel gas models are not interchangeable in order to prevent wrong connections Color coded for fast Replacement deburring tool blades for Models 481 and 482 Works best on steel Excellent abrasion resistance Great breathability due to porous nature of hide Becomes softer with use Inherently retains natural softness after exposure to water