We have a few metal-cutting lathes in various sizes, and chucks (round things that grip the workpiece) are expensive, so when I got the chance to grab this collection, I did. They range in diameter from about 5"-15", are both vintage and modern, some are ready to use, and others lack the backplate which adapts them to a particular type of lathe. Some we can use as-is, some will need work, and some we'll sell or trade off eventually. A 16-oz. aerosol can is near the back of the box, for scale. Box and contents weigh about 1250 lbs. The box was full of about three giant yard trash bags-worth of styrofoam peanuts on arrival, which btw do NO good to protect heavy stuff like this, cardboard is much better.
I am a chuckaholic Spring, I thought you were going to say that you are prone to "chuck" things you don't need, and I was ready to call you out on it! Instead, I'll just say that you always come up with things I'd never even think of collecting!
No because only one came with a Chuck key! (Always think positive.). Fortunately Chuck keys are readily available cheap or we will have a piece of square cross-section bar stock that will fit for a home-made one.
Nice chucks.....my uncle would have loved them....he had a basement full of lathes for wood and metal; he was a teacher at Benson Tech in Portland Oregon. He had made several cannons which were used by the local yacht-club. Most muzzle-loading, but as a tour-de-force he made a breech-loader also. Not sure how you would classify them, but they weighed from 10-40 pounds.