Umuyoboro wa Crowredriver - ikiranga ntangarugero cyibikoresho byose byashyizweho. Ariko ibi muri 1930, ntabwo byahise byemezwa numuryango wikoranabuhanga.
Isura ya mbere ya Scuwdrivers hamwe na "igorofa" yagarutse mu kinyejana cya XVI, hafi ifishi idahindutse yabayeho mbere yikinyejana cya 20.
Kugeza ubu, imigozi ifite slit yari imaze guteza ibibazo byinshi, ariko ntiyari mumarushanwa kubera kuhendutse. Ibibi bya "Classic" byavuzwe cyane cyane hamwe ninteko rusange, byumwihariko, mubikorwa byimodoka. Ubwa mbere, urubingo ntirwigeze rushingiye, kubera iyi, imiyoboro ya manike ikunze guswera, kuva mu gishushanyo mbonera ku bice by'umubiri bitarangwa. Icya kabiri, iyo unyeganyega, imigozi n'imigozi "bikurura", guhindura umutwe cyangwa kwangiza iby'ibisige. Izi mbogamizi kandi ziteranira gutsinda Umuvugizi w'Abanyamerika John Thompson, mu 1933 yakubise umutibambaga akareba kandi akoresheje umutiba. Ariko, kugerageza kugurisha ibyavumburwa kubakora ibyuma ntabwo byambitswe ikamba. Mu 1934, Thompson yamenyereye injeniyeri Henry Phillips aramugaragariza ishingiro ry'ivumburwa rye. Phillips nakunze igitekerezo, yaguze uburenganzira ku mapansi ya Thompson maze ategura isosiyete ya Phillips ya Screw (iracyahari). Mu 1936, yazamuye ikoranabuhanga kandi yatezimbere ikoranabuhanga ryo gukora imigozi myinshi. Imigozi yo kumenagura ihinduka ihinduka screwdriver, kandi nanone ntiyemereye "gukurura" - urubingo rw'igikoresho rwanyerera gusa.
Ariko, Phillips yakuweho ahantu hose. Amaherezo, yashoboye gushimisha Yujina Clark, Ikigo cya Perezida w'Abanyamerika cya Screw, uruganda runini rw'ibyuma muri Amerika. Nubwo abashakashatsi b'ikigo banze ko Clark yafashe igitekerezo cy'uko yangamiye "kwirukana abantu bose bavuga ko bidashoboka gushyira mu bikorwa." Iterabwoba ryari rifite igikorwa, kandi isosiyete, ishora imari mu gutunganya umusaruro w'igice cya miliyoni y'amadorari, yatangiye umusaruro w'imigozi munsi ya "Cross". Mu 1937, GM yabanje gukoresha iyi migozi mu gukora icyitegererezo cya cadillac. Ibisubizo byari byiza cyane ku buryo bitarenze 1940, abigabye abanyamerika bimuwe mu mikoreshereze ya Crusades, kandi abakora ibyuma bakubatswe no kugura uruhushya. Mu Ntambara ya Kabiri y'Isi Yose, abakora ibikoresho bya gisirikare - Tanks n'indege bimuriwe gukoresha iyi migozi.
Kuva icyo gihe, imiyoboro myinshi itandukanye yavumbuwe - kandi munsi ya polyhedra, no munsi yinyenyeri zitandukanye. Ariko nubwo bimeze, imigozi yambukiranya imigozi (mu masoko zitwa Icyongereza Abahimbye - Abafilipi) baracyafite ishingiro ryibitabo byose.
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