A drill is an iconic gadget when it comes to power tool and drill operators face exact both high vibration and harsh environment while drilling. Since the drilling vibration is basically unavoidable, minimizing the vibration cause by bearings consequently improves the drilling vibration overall. Debris from the drilling work piece can be any forms, e.g. scraps, detritus or the powder kind which has the highest chance to get into the bearings and lead to bearing failure.
