Official Answer
Answer
Impeta ya spiral ikurwaho no gutondagura impera imwe muri ruhago no 'kudashaka' impeta. Kugirango byorohereze ibi, 'gukuraho notch' (agace gato kegeranye) akenshi bikozwe mubice bimwe. Ibi bituma screwdriver cyangwa amenyo atora kugirango agere inyuma yibikoresho. Muri sisitemu yo mu kirere ihindagurika cyane, icyerekezo cyiyi ntambwe kirashobora kuba ingenzi; bigomba guhagarikwa kure yicyerekezo cyibanze cyingufu za centrifugal cyangwa flux itemba kugirango birinde gufatwa nimpanuka. Ku mpeta ziremereye, 'double-offset' impera irashobora gukoreshwa mugutanga icyuho kinini kubikoresho. Igishushanyo mbonera cyo gukuraho neza cyerekana ko impeta na groove bitangiritse mugihe cyo kubungabunga, bigatuma hashobora gukoreshwa inteko.
