There are nonflamable spray electric cleaners out there that can extend motor life. I became a believer when I saw a guy shoot his 1/2 drill w/ one. He had paper towels on the bench and when the fluid drained on it, it was black. Dirt and carbon build are the enemy. BTW, who makes the drill w/ a rocker switch for forward/reverse switching?? I worked for a guy who had one, and it was great. I want to think it was Hitachi.
