This is the cheapest lathe chuck i have ever purchased and it surpassed my expectations. I really needed something I could fit my own custom jaws too.
Very good quality, especially for the price, and after machining the back plate and mounting the chuck to my Warco 250V, I immediately got a maximum runnout of 4.5 microns, which is 1.75 10 thousandths in 'old money'
Very good chuck at a great price and
Tonys 
