Hi fella's, I don't post here terribly often but thought these might be worth a mention. I bought 10 ER20 collet chucks off eBay a couple of weeks back and they arrived from China early last week.

I haven't tested them for runout but have used a couple of them with 3/16 slot drills in them and they seem to work fine. They were $99 for 10 of them, so at that price I could have tossed them out if they were no good:



Link to the auction is Here

Cheers,
Greg