Best Yet Knurling Tool

[TomG]

(11-10-2012, 05:11 PM)Wawoodman Wrote:

(11-10-2012, 04:45 PM)TomG Wrote: Mike,

If the parts were soft, I'd use a .249 reamer, but since they are hard I would go with a .2495. If they are still too tight after hardening, you may need to lap them out a bit.

Tom

Then I'm missing something. I thought the pieces would be slotted, bored, and reamed before hardening. Then you would assemble them with the knurl and pin. No?

Mike: You would have a tough time pressing a hardened .250 dowel pin into a hardened .249" hole. It would almost certainly crack the part.

Dave: The locking screws would make a mess out of soft knurl holders, not a good thing if they are running in an aluminum slot. Also, the knurls would eat them up fairly quickly with the side loads generated by feeding the tool.

Tom