Although using a 75mm disc to remove the weld and re-grain a surface is not the ideal way of working sometimes it is necessary. We have tested this process many times so we know that it works. With a bit of care you can even put the grain in to look really sharp using the conditioning discs and the Inoxitape.
Step 1: Use the Power zirc discs to remove the weld, being careful not to grind into the surface of the parent metal
Step 2: Refine the finish with the medium surface conditioning discs and ensure that the sanding lines are in the right direction for the final grain finish
Step 3: Repeat step 2 with the very fine (blue) conditioning disc and the Inxoitape masking the line to show the mitre corner