311.2mm (12 1/4″) Obere ihe eji egwu mmiri nke nwere obere ihe e ji polycrystalline bee, nke nwere ihe mkpuchi hydraulic, nke nwere agụba ise, dayameta ihe e ji egbutu ihe nke 19 mm, nke nwere ahụ ígwè maka igwu n'ime nkume ndị dị ọkara.

Ihe mgbochi igwe 311.2mm (12 1/4″) na-eme nke ọma n'igwupụta nkume dị ọkara. Mkpụcha ya dị ka polycrystalline na-enye ike na iguzogide iyi, na-eme ka ndụ ogologo oge na arụmọrụ ịkpụ ihe na-aga n'ihu. Nkuku hydraulic na-asachapụ ihe mkpofu nkume nke ọma, na-egbochi mkpọchi ma na-eme ka ọsọ igwu mmiri dịgide. Site na agụba ise, ọ na-ekesa ike ịkpụ ihe n'otu aka ahụ, na-ebelata ịma jijiji ma na-eme ka nkwụsi ike dịkwuo mma. Dayameta igwe 19mm na-eme ka mwepụ nke mgbawa dị mma, ebe ahụ ígwè na-enye ike nhazi dị elu iji nagide ọnọdụ nkume siri ike. N'otu aka ahụ, atụmatụ ndị a na-eme ka arụmọrụ igwu mmiri dịkwuo mma, na-ebelata oge nkwụsị, ma hụ na a pụrụ ịtụkwasị obi na nhazi nkume dị ọkara.