ORIGINAL TRANSGRADIOR INSTRUMENTUM HOLDERS, CONVERSIO HOLDERS No.2 adversus "
V rimam rotundam tenent scapus vectibus et instrumentis perforatis nec non quadratis instrumentorum ad machinae finem faciei, externi, secandi, perforare etc.
| Item No. | A(in) | B(in) | C(in) | D(in) | Dia adductius (in) | |
| 550-102 | 250-102 | 1 | 1/2 | 29/64 | 1-1/2 | 3/16-1/2 |
| 550-202 | 250-202 | 1-1/8 | 5/8 | 1/2 | 1-3/4 | 1/4-5/8 |
| 550-302 | 250-302 | 1-7/16 | 3/4 | 5/8 | 2-1/8 | 1/2-3/4 |
| 550-402 | 250-402 | 1-23/32 | 1 | 3/4 | 2-1/2 | 1/2-1 |
