For those of you that do any scratch building or those that super detail kits, you are well aware of punch sets. For the rest of us, a quick explanation is needed. Roll Models Sub-Miniature Punch and Die set includes a series of series of metal punches and a guide to allow you to replicate small discs. The Sub-Miniature set comes in sizes 0.063, 0.058, 0.053, 0.048, 0.043, 0.038, 0.033, 0.028, 0.023, 0.018 inches. It can be used for punching out plastic card to replicate bolt heads or used to punch paper to make masks.
The process is simplicity itself. You select the size punch you need. Slip your material to be punched between the guide bars, insert the punch and strike sharply. Out the other side comes a perfect little disk. You can do this over and over and it remains the same size.