Drill Chuck Problems

[75Plus]

Am I the only one that finds that the Asian chucks or chuck keys seem to wear rapidly. Every one I have started slipping when tightening or releasing in a short period of time. I have several Jacobs and other US made chucks that are still tight after over 50 years of use.

Joe

[Stilldrillin]

Joe,

The chuck supplied with my Chinese bench drill "stripped" internally during it`s first week of use...... 

Successfully replaced by a cheap 13mm chuck off Ebay. 

My X2 type mill`s chuck "stripped" internally during it`s first month of use........ 

The Ebay chuck is now on the mill, and still giving full satisfaction! 

I guess you can say Asian quality is variable.......

David D

[75Plus]

David, My problem is with the key. After a short period the key starts slipping on the teeth of the chuck. I think it has to do with the fit of the key to the chuck. I just don't know how to improve the fit.

Joe

[wheeltapper]

Hi
you could try machining a small amount from the narrow end of the taper so it goes in the chuck teeth more.

Roy

[Stilldrillin]

Hi
you could try machining a small amount from the narrow end of the taper so it goes in the chuck teeth more.

Roy

Yes! I`ve done that too....

Also, always push the key towards the teeth, so it is held tight in engagement...... 

Never had a problem with my own keys. Often had problems with communal keys, (at work)! 

David D

[ibuildstuff4u]

I have six tail stock chucks for my lathe and some of the keys that came with them fit really sloppy so I tossed them and just use the ones that fit good.  Perhaps you can find a good quality key at your local hardware store that will fit better.  The keys that come with the chucks are poorly made.

Dale P.