It is an automaitc center punch. It is spring loaded, you push the point at agiven point and it automatically leaves an indentation on the surface of the object. I use all the time when drilling into metal doors.
ooooooooooooooooooooooooooooosluggo said:It is an automaitc center punch. It is spring loaded, you push the point at agiven point and it automatically leaves an indentation on the surface of the object. I use all the time when drilling into metal doors.