Intambamyi idafite anti-kugonganani ubwoko bw'intoki zitagira inzitizi zashyizwe ahantu rusange, nk'ibitaro, ingo zita ku mibereho, amazu yita ku bageze mu za bukuru, amahoteri, ibibuga by'indege, amashuri, ubwiherero n'ahandi banyura, kugira ngo bifashe abamugaye, abasaza n'abarwayi gushyigikira kugenda no kwirinda ibicuruzwa bigwa.
Intoki zidafite inzitizi zo kurwanya kugongana muri rusange zigabanijwe muburyo bukurikira: intoki 140 zo kurwanya kugongana, 38 zo kurwanya kugongana, 89 zo kurwanya kugongana, 143 zo kurwanya kugongana hamwe n’intoki 159 zo kurwanya kugongana. Reka turebe ibiranga buri ntoki zifite.Iyi ntoki yo kurwanya kugongana ni 38mm z'ubugari. Imiterere ya silindrike yakozwe ikurikije gufata neza imikindo yumuntu. Nibyiza cyane gufata no gukoresha. Ubuso bwubuso bwongera ubushyamirane kugirango birinde imikindo itose. Gufata bidasubirwaho ni akaga. Nyamara, kubera ubugari buto bwiyi ntoki, ahantu ho guhurira na ho ni hato, ntabwo rero ishobora kugira ingaruka nziza yo kurwanya kugongana ku magare, ibitanda bigendanwa, intebe z’ibimuga, nibindi. Birakwiriye cyane kubikorwa byogusaza kwabaturage, kandi bikoreshwa mubufasha bwo kugenda.
Ubugari bwiyi ntwaro yo kurwanya kugongana ni 89mm, imiterere yashizweho nkuburyo butonyanga butonyanga, kandi ubuso bufashe ni bunini kuruta ubw'icyitegererezo 38. Ariko, kubera ikibazo cyakarere kameze, ingaruka zacyo zo kurwanya kugongana ni rusange, kandi muri rusange zikoreshwa muguhagarika ingaruka zintebe yimuga. Niba ikoreshwa gusa mubufasha bwimikorere yabantu, iyi ni ihitamo ryiza duhereye kubitekerezo byuburanga no gukoresha ingaruka. Mubisanzwe bikoreshwa mumishinga nkibigo bishinzwe ubumuga.
Iyi ntwaro yo kurwanya kugongana ifite ubugari bwa 140mm kandi ifite imiterere yagutse. Imikorere itaziguye yiyi shusho nuko ingaruka zo kurwanya kugongana zigaragara. Bitewe nuburinganire bwagutse buringaniye, biratandukanye muguhitamo amabara, kandi birashobora gutoranywa no guhindurwa ukurikije uburyo rusange bwo gushushanya. Birakwiriye cyane kumushinga wintoki igice cyibitaro.
Ubugari bwiyi ntwaro yo kurwanya kugongana ni 143mm, ni ukuboko kwambere kurwanya kurwanya kugongana. Iringana no guhuza byimazeyo moderi 38 na moderi 89, kubwibyo ibyiza byayo rero ni uguhuza byombi. Kubera ko hari ibikoresho byinshi byifashishwa, guhitamo ibara ryerekana amabara biratandukanye, ariko biragoye gushiraho. Mubisanzwe bikurikizwa mubitaro n'inzu zita ku bageze mu za bukuru.
Iyi ntwaro yo kurwanya kugongana ifite ubugari bwa 159mm, ifashe uruziga ku gice cyo hejuru hamwe n’ikibanza kinini cyo kurwanya kugongana ku gice cyo hepfo. Iyi ni ihuriro ryamaboko 38 yo kurwanya kugongana hamwe n’amaboko 140 yo kurwanya kugongana, abumbabumbwe mu gice kimwe, bitandukanye n’intoki 143 zo kurwanya kugongana zahujwe ukwe. Uku gufatira ibyemezo gufata neza mugihe wongereye agace ko kurwanya kugongana, kandi ingaruka zo kurwanya kugongana ziragaragara cyane. Kandi ibara ryatoranijwe rirakungahaye cyane, kandi rirashobora guhuzwa byoroshye nuburyo butandukanye bwo gushushanya. Mubisanzwe birakoreshwa ahantu henshi nko mubitaro hamwe n’ubuvuzi hamwe n’ubuforomo.
