We attach parts that have been machined out of metal to jigs and polish them.
After processing parts, use file etc. because the side is uneven We will apply hairline processing I will finish parallel to the parts to affect the appearance of the finish.
You rough finish using the rasp, In order to greatly affect subsequent work by this process. Areas that are corners must be sharp angles, making processing difficult.
We polish with emery stick without breaking shape. I finish the mirror surface while making the file gradually smaller.
After polishing with emery stick, super hard spatula, Finish with diamond paste. I will do the engraving after finishing.