× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Double flaring tool
Posted to Tool & Equipment Forum on 1/6/2020

I don't have an official method but straight copper is a much deeper red/brown when new. Once in service, they both develop the green patina. Login to read more.