Kandi muriki gihe dufite ifirimbi! Reka tugerageze kubikora n'amaboko yawe tutakoresheje ibikoresho bihenze nibikoresho bigoye.
Gutangira, ushakisha igice kimeze neza, nka 20mm muri diameter. Mubikoregure hamwe na drill kuri 10mm.
Ku mpera imwe, tunywa ikinyobwa, kugeza hagati ya diameter. N'icyuma gityaye, keretse neza, gica inkwi zerekeza kuri drift, ku nguni dogere 35-45.
Kuva imperuka nta binyobwa, dukora imico, birakenewe ko byaba ari byiza kandi ntibyaretse umwuka.
Ku rundi ruhande, ifirimbi nayo yashyize icyuma, ikagabanya diameter 2/5 .. Kunyura mu kirere.
Ifirimbi yiteguye, igeragezwa nubunini bwimyobo hamwe nifiriki ndende urashobora kugera kuri danality yifuzwa.
Kandi iyo bafite ikiganza, uzashobora gushimisha abana bawe nabana bawe bamenyereye ifirimbi.