Fibulae securitatis API 7K ad operationem sertae perforatoriae
Fibulae securitatis sunt instrumenta ad tubos iuncturae planae et collarium terebrale tractandos. Tria genera fibularum securitatis sunt: Typus WA-T, Typus WA-C et Typus MP.
Parametri Technici
| Modellum | diameter externus tubi(in) | NumerusVincula catenarum | Modellum | diameter externus tubi(in) | NumerusVincula catenarum |
| WApud | 1 1/8-2 | 4 | MP-S | 2 7/8-4 1/8 | 7 |
| 4-5 | 8 | ||||
| MP-R | 4 1/2-5 5/8 | 7 | |||
| 2 1/8-3 1/4 | 5 | 5 1/2-7 | 8 | ||
| 6 3/4-8 1/4 | 9 | ||||
| Tres et dimidium - quattuor et dimidium | 6 | 9 1/4-10 1/2 | 10 | ||
| MPrimus Minister | 10 1/2-11 1/2 | 11 | |||
| WA-C | 3 1/2-4 5/8 | 7 | 11 1/2-12 1/2 | 12 | |
| 4 1/2-5 5/8 | 8 | 12 1/2-13 1/2 | 13 | ||
| 5 1/2-6 5/8 | 9 | 13 5/8-14 3/4 | 14 | ||
| 6 1/2-7 5/8 | 10 | XIV 3/4-XV 7/8 | 15 | ||
| 7 1/2-8 5/8 | 11 | MPL | XV VII/VIII-XVII | 16 | |
| VIII 1/2-IX 5/8 | 12 | XVII-XVIII et dimidium | 17 | ||
| 9 1/2-10 5/8 | 13 | 18 1/8-19 3/8 | 18 | ||
| 10 1/2-11 5/8 | 14 | MP-XL | 19 3/8-20 3/8 | 19 | |
| 111/2-125/8 | 15 | XX 3/8-XXI 1/2 | 20 | ||
| 12 1/2-13 5/8 | 16 | 21-22 5/8 | 21 | ||
| 1Tres et dimidium14 5/8 | 17 | 225/8-23 3/4 | 22 | ||
| 233/4-24 7/8 | 23 | ||||
| 14 1/2-15 5/8 | 18 | XXIV VII/VIII-XXVI | 24 | ||
| XXVI-XXVII et octava pars | 25 | ||||
| XXIX 3/8-XXX et dimidium | 28 | ||||
| 35-36 1/8 | 33 |
Nuntium tuum hic scribe et nobis mitte.






