Designed for high-performance welding, the Weldmark WMK23 conical MIG nozzle is crafted from durable copper and brass materials, ensuring optimal conductivity and longevity. With a bore diameter of 5/8" (0.625"), this nozzle is compatible with MIG guns rated up to 300 amps, making it an ideal choice for both professional and industrial applications. Its self-insulated design and air-cooled style enhance safety and efficiency, while the fine threading guarantees a secure connection, reducing the risk of leaks or disconnections during operation. Each package contains two nozzles, providing excellent value for welders looking to maintain their equipment with reliable consumables.