1. Laminam bisellatam cum radio interno et externo in formam S professionalem adduc.
2. Contractor laminam metallicam pro curvis interioribus contrahit.
3. Extensor laminam metallicam pro curvis externis expandit
| Modellum | SS-18 | SS-18FD | SS-16F | FSM-16 |
| Capacitas | 1.2mm | 1.2mm | 1.5mm | 1.5mm |
| Profunditas Gutturis | 25.4mm | 25.4 | 208mm | 152mm |
| Magnitudo sarcinae | 46x20x13cm | |||
| Boreoccidentalis/GW | 5.5/5.8 kg |