Uduce duto two gucukura twa IADC635/IADC735 dufite santimetero 9 7/8 dutanga umusaruro mwiza ku miterere ikomeye kuva ku ibara ry’umukara kugeza ku ibara ry’umukara, nk’amabuye y’umucanga, na dolomite. Uduce twa tungsten carbide tworoshye dutuma twinjira cyane kandi tudapfa kwangirika cyane. Ibyuma bifunganye bifite uburinzi bukomeye bwo kugenzura byongera igihe cyo gukora kandi byongera ubusugire. Uburyo bwo guhuza API butuma habaho guhuza neza. Imiterere myiza yo gukata no kuzenguruka kw’amazi byongera imikorere myiza yo gucukura, bigabanya igihe cyo gukora, kandi bigagabanya ikiguzi cyo gukora, bigatuma biba byiza mu gucukura no gucukura imyobo myinshi.
Igihe cyo kohereza ubutumwa: Werurwe-04-2026