
Usoro nke UC na-ezo aka na ahaziri ahazi, ejiri ọtụtụ ebe Ohiri isi ngọngọ nkeji bọọlụ nwere aka nkwụnye aka. N'ime isi ha bụ bọọlụ nwere oghere dị omimi nke nwere a dayameta mpụta okirikiri (SPB) emebere ka ọ dabara n'ime oghere okirikiri dabara adaba nke ụlọ nkedo. Na-akwado metric akụkụ, A na-ahazi usoro isiokwu a maka ngwa mmepụta ihe na-achọ ikike ibu dị elu, nrụnye kwụ ọtọ, na arụmọrụ a pụrụ ịdabere na ya.
| ISO | UCT315-48 | |
| Nrụpụta Mba. | UC315-48 | |
| Ebe obibi | T315 | |
| Obere dayameta | d | 3 in |
| Ogologo oghere mgbakwunye | o | 1-13/32 n'arọ |
| Ọgwụgwụ mgbakwunye ogologo | g | 1-1/16 nke |
| Elu nke mgbakwunye njedebe | p | 5-3/16 nke |
| Elu nke oghere mgbakwunye | q | 3-17/32 nke |
| Dayameta nke mgbakwunye bolt oghere | s | 1-13/16 nke |
| Ogologo uzo piloting | b | 5-29/32 n'arọ |
| Obosara uzo piloting | k | 1.024 n'arọ |
| Ịgba elu | e | 7-9/16 nke |
| N'ozuzu elu | a | 8-1/2 n'arọ |
| N'ozuzu ogologo | w | 10-5/16 nke anụ ọhịa |
| N'ozuzu obosara | j | 3-17/32 nke |
| Obosara oghere | l | 2-5/32 nke anụ ọhịa |
| Ebe dị anya site na njedebe ihu ruo na ahịrị etiti nke dayameta oche okirikiri | h | 6-5/16 nke |
| Obosara mgbanaka ime | B | 3.2283 n'arọ |
| Center of Bearing from End | n | 1.26 n'arọ |
| Ibu ibu | 12.7 n'arọ | |