Why on earth would your hand be anywhere near the head of an operating milling machine?
Accidents happen. You slip, or get tired and careless and then suddenly your hand isn't where you expect it to be. On a manual mill, it's more likely that your face, not hand will be closer to the bit as you monitor how it's cutting.
A chemistry senior was killed by a lathe at Yale last week working alone late at night when she was pulled against the machine by her hair.
An average size lathe with a 6" chuck will pull 18" of hair in a single revolution. At a moderate speed of 300 rpm that's too fast for a person to react. In the battle of human vs. 3hp motor, human loses. I've seen enough photos of human bodies turned into hamburger by even small industrial machines to not take the danger seriously!
Accidents happen. You slip, or get tired and careless and then suddenly your hand isn't where you expect it to be. On a manual mill, it's more likely that your face, not hand will be closer to the bit as you monitor how it's cutting.
A chemistry senior was killed by a lathe at Yale last week working alone late at night when she was pulled against the machine by her hair.
An average size lathe with a 6" chuck will pull 18" of hair in a single revolution. At a moderate speed of 300 rpm that's too fast for a person to react. In the battle of human vs. 3hp motor, human loses. I've seen enough photos of human bodies turned into hamburger by even small industrial machines to not take the danger seriously!