1.Bikwiriye guterura no gutwara ibyuma, ibyuma byubatswe hamwe numurongo wanditse muburyo butambitse.
2. Irinde kunyaga cyangwa gupakira ibintu.
3. Imipaka yumurimo ntarengwa ni umutwaro ntarengwa clamps yemerewe t gushyigikira iyo ikoreshejwe kubiri hamwe na mpagarike ya dogere 60.Ibikorwa bya inflifing clamps irashobora gukoreshwa kubiri cyangwa kugwira.
4. Urwasaya rwimibiri rwumubiri rushobora guhinduka, rukagira na buto yuzuye.