美国采购需求：便携式直线镗床、法兰端面加工机、便携式铣床、镗焊机、法兰端面加工机、Obrital铣床

I am in the market for a portable milling machine with a magnetic base that operates on 120V power. The ideal machine should be capable of precision milling to create a 1/2" slot in a 1/4" thick steel beam flange. We require a 3-axis design for enhanced versatility and ease of use in various applications, particularly in scenarios where mobility is essential. Please provide details about the specifications, features, and pricing of any models that meet these criteria. Additionally, information regarding delivery timelines and warranty options would be greatly appreciated. Looking forward to your prompt response as we are looking to make a decision soon.