The first thing you should do is to create a metal fabrication business plan. You should have an idea of what type of business you want to start and how you want to incorporate it. Buy welding consumables, you will need to buy welding tools to start your fabrication job done. You will obviously need basic tools. These tools include welding helmets, welding clamps, welding gloves, etc. No need to invest in specialized tools when you are just starting your new fabrication workshop. Once you have basic tools you can start your fabrications workshop in the welding sector.