Tayler_mann said:
Mine only wobbles at the 4th gear. As soon as I have screw on the end I have no problems I guess. My hole saw worked fan freakingtastic in it as well. I guess I'm saying the wobble was there until I was actually using it to put a screw in.
That was my expectation. When it actually got to work it would settle down. But that's not the case. The wobble is carried back up through the whole rig and the thing shakes like crazy. Drilling too. I tried a self centering bit and the vibration caused the bit to unscrew. I wouldn't even try 4th gear with this chuck and certainly not a hole saw. That would be a mess.
It's not just on long bits. 2" long bits are bad. Very short socket bits aren't too terribly bad.
It's interesting that both of the chucks I have exhibit the same behavior. There must be some time span between when each was manufactured cause one came with a drill and one is spare parts inventory. I'll try to talk to a service manager this time and try to get him send me a chuck that he has personally tested and found satisfactory.
If it still wobbles then I don't know what to do. I can't see how it can be the drill. The Jacobs chucks works fine. The same bits that wobble so badly in the ball detent chuck work fine in the Jacobs chuck. Small bits inserted directly in the receiver work fine.