The Uniweld 70003 Heavy Duty Flaring Tool is a must-have tool for any welding project. This flare tool is designed to quickly and easily flare welds up to 3/8 in. in diameter. The 70003 also features a built-in light for easy viewing of the welds. The Uniweld 70003 Heavy Duty Flaring Tool is a must-have tool for any welding project. This flare tool is designed to quickly and easily flare welds up to 3/8 in. in diameter. The 70003 also features a built-in light for easy viewing of the welds.