I hate the keyless chuck. I appreciate the mans innovation that came up with it but frankly....they suck. I want to kick him in the balls. The keyless chuck just never seems to hold as tight as I need, or catches the edge of somthing and can unloosen itself when doing alot of operations.
On a side note- I was having issues with the chuck earlier this week. Just wasnt holding the bit tight anymore. (chuck in question is a 5/8" Albrecht for milling machine) I contacted the company about having a rebuild performed. To rebuild my old chuck would be $175. For a brand new one $266. I mailed my old one in for the rebuild and...2 days later recieved a brand new one for the rebuild price. Great company, great service.
I will openly admit to be a member of the 'throw away and buy a new one' mindset, but have a newfound faith in pride of mechandise, pride in company, and pride in....getting work done.