311,2mm (12 1/4″) Chidimbu chekuboorera chine zvidimbu zvepolycrystalline, chine maburi ehydraulic, chine mapanga mashanu, dhayamita yekucheka ye19 mm, chine simbi yekuboorera mumatombo epakati nepakati.

Chidhinha che311.2mm (12 1/4″) chinoshanda zvakanaka pakudhira matombo epakati nepakati. Zvidimbu zvayo zvepolycrystalline zvinopa kuomarara kwakanyanya uye kuramba kupfeka, zvichiita kuti nguva yakareba yekushanda uye kushanda zvakanaka kwekucheka. Maburi ehydraulic anobvisa marara ematombo zvinobudirira, achidzivirira kuvharika uye achichengetedza kumhanya kwekuchera. Nemaburi mashanu, anogovera simba rekucheka zvakaenzana, anoderedza kudedera uye anowedzera kugadzikana. Dhayamita yekucheka ye19mm inogadzirisa kubviswa kwemachipisi, nepo simbi ichipa simba rakawanda rekugadzirisa mamiriro ematombo akaoma. Pamwe chete, zvinhu izvi zvinowedzera kushanda zvakanaka kwekuchera, kuderedza nguva yekushanda, uye kuona kuti kushanda kwakavimbika mukugadzirwa kwematombo epakati nepakati.