Answer
Radius ko chamfer a ɓangaren da aka riƙe yana haifar da hannu na ɗan lokaci wanda ke haifar da tasirin 'jita' akan zoben. An ƙididdige ƙarancin ƙarfin motsa $P_r$ ta $P_r = P \ lokuta (1 - \ frac {z}{t})$, inda $z$ shine girman chamfer kuma $t$ shine kaurin zobe. Lokacin da chamfer ya wuce kashi 50 na kauri na zoben, haɗarin zama 'fitar da zoben' daga tsagi yana ƙaruwa sosai. Don injuna masu nauyi, injiniyoyi yakamata su yi amfani da injin wanki ko kuma saka wani wuri mai kaifi mai murabba'i don tabbatar da ɗaukar nauyi daidai da fuskar zobe.