Quote Originally Posted by popspipes View Post
drilled holes are not very accurate, I would put in another op and ream to 6mm.

drilled holes depend on how the end is ground, a bit off center and it will drill oversize.
Thank you for the reply.
I do understand that, it was accurate enough for my purpose and now the holes are way oversized.
I've also tried to drill with 5.7mm and then use 6mm reamer. That didn't produce better result. Still too oversized for 6mm pins.
Can't figure out what is different now unless there is some tool holder run out, as I mention even with 6mm drill only the tolerance was good for my purpose.