Stiff, came damaged. I have yet to check run-out, but I disassembled it, deburred it and reassembled it. It was full of burrs and some loose metal shavings on bearing surfaces. I cleaned then re-applied grease. I did not disassemble the chuck yet. The jaws themselves were not deburred, nor the slots. There was a massive burr all around causing the jaws to bind a bit. Upon removing the jaws, turning the mechanism for tightening the jaws was like a bag of rice, just crunching and grinding. I imagine it will have some poor machining. I will see what the concentricity/run out is in the future. The are sending me a replacement part for the damage, but if its not running true when I check, its just going in the trash. Picture below shows broken check ball for oiling the jaws; probably when there is metal in there.
Customer Service Reply:
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Michael Brown 
ApolloMobilePower 
spark pluge 
Evan M 
