Ana yin ƙwanƙwasa waɗanda ba magnetic Drill ba daga sandunan ƙarfe marasa ƙarfi tare da ƙaramin ƙarfi ta hanyar haɗa ƙididdigar sinadarai na mallakar mallaka da tsarin ƙirƙira guduma tare da ƙarancin ƙarfin maganadisu kyakkyawan ikon injin, ba zai tsoma baki tare da na'urori na musamman ba kuma zai haɓaka aikin aikin hakowa.
Ƙwararrun ƙwanƙwasa marasa magini suna aiki azaman gidaje don kayan aikin MWD, yayin da a lokaci guda suna ba da nauyin nauyi don drillstring. ƙwanƙwasa ba-mag ba sun dace da kowane nau'in hakowa ciki har da aikace-aikacen madaidaiciya da jagora.
Ana bincika kowane ƙwanƙarar rawar soja ta ma'aikatar bincike ta ciki. Duk bayanan da aka samu ana yin rikodin su akan takardar shaidar dubawa da aka tanada tare da kowane kwalawar rawar soja. API monogram, lambar serial, OD, ID, nau'in da girman haɗin haɗin gwiwa an buga su a kan filayen niƙa.