I HAVE USED THIS TOOL FOR OVER 40 YEARS AND IT HAS BEEN A PERFECT COMPANION IN MY BUISNESS & HOBBY'S AS WELL AS A TOOL THAT TRAVELS WITH ME AT ALL TIMES ... THE ONLY ITEM SO FAR THAT I HAVE HAD TO REPLACE IS THE NI-CAD BATTERY...EASY TO HANDLE, EASY TO CARRY AND HAS AMPLE POWER FOR MY NEEDS.