Re: [CAD_CAM_EDM_DRO] tool holders

edwardhall@... wrote:

> Hi,
>
> I am a greenhorn in machining.
>
> I keep reading about terms like R8, Morse taper, MT#4 etc and will
> like to learn what they mean. Is there a on-line tutorial/info page
> where I can learn them?

It sure would be nice to have everything every one would like to
know about metalworking in one place! MT#4 is the #4 size of
Morse Taper, R-8 is the Rockwell taper that has become standard
on smaller Bridgeport-style milling machines.

These things are not specific to CAD_CAM_CNC, so they probably don't
belong on the CAD_CAM_EDM_DRO web pages, but should be
somewhere on an associated general machining web site.

If you don't have Machinery's Handbook (kind of expensive, but
well worth it) you should really get it. I can't think of anything that's
not there, although sometimes it takes a while to find things.

Jon