RE: cooling head
kool, though usually the best way 4 me to get stripped hex screws out is to use a slightly larger star shaped bit with an extension and use a hammer to tap it in and make a extremely tight fit, then us a wrench at the top of the extension and slowly twist it out, it works all the time but eventually the tip may break off inside the screw if you try it too many times with the same bit. thats how i do it, i dont know.[sm=72_72.gif]