Umatshini wokugaya imagnethi ulungele ukugrumba ngentsimbi.Iimagnethi ezinamandla zenza indawo eqinileyo ngelixa i-drill bit ijikeleza, isenza kube lula ukugqobhoza nakweyona ntsimbi ingqindilili.Umatshini kulula ukuwusebenzisa kwaye uza neendidi ngeendidi ze-drill bits ongakhetha kuzo.Ukuba ujonge indlela elula nesebenzayo yokubhoboza ngentsimbi, ungajongi ngaphaya komatshini wokomba wemagnethi.