and I'll put in my 2 cents worth on the subject. I have a 7518 with the
1/4 and 1/2 collets. They hold the bits tenaciously and release them
very easily. also NO runout.
dave
len wrote:
> My 7518 collet has been very good. I can also swap my 693 collet in
> there for 1/4 inch bits. If you just bought it, why not contact Porter
> Cable and ask for an new one. I have had very good luck in the past
> with them.