- Joined
- Nov 9, 2013
- Messages
- 790
The first thing we learned in shop class, and greatly stresses at that is that one NEVER leaves the key in a chuck; that was drummed in and reinforced in apprenticeship.
Although I never became a professional machinist, this is what I learned as well. You just didn't leave the chuck key in the chuck. EVER. Not even for 5 seconds. No matter what. No excuses.
I saw an episode of Mythbusters where Adam Savage showed his personal shop. He was showing his lathe (a very nice one), and put the chuck key in the chuck and took his hand off it. He said that one action was enough to get you kicked out of his shop for good.
GG