Re: Reason Criterion Square Boring Head Exists?


<brewertr@xxxxxxx> wrote in message
news:rnan05lch7k3ceqrpgeveoru7ahimn7nbk@xxxxxxxxxx
On Sun, 10 May 2009 13:18:30 -0700 (PDT), jon_banquer
<jon_banquer@xxxxxxxxx> wrote:

What is the reason for the square boring head that Criterion makes?
What advantage does it have over the round Criterion boring head?

Jon Banquer
San Diego, CA

You mean other than range, bar holder positions and versatility?

http://www.criterionmachineworks.com/Pages/tech/boringheadinfo.htm

Put the two of them side by side, what's the difference?
Item #4 is the hint, three set screws equals three tool positions.

http://www.criterionmachineworks.com/ look at the tool

Turn the cutting edge 180° and what do you think can happen?

http://www.youtube.com/watch?v=y0NXQLz8r0c&feature=related
(Not criterion but you should get the idea.)

You now have an OD Turning tool.


Just be sure and use a rh boring tool or else the shank might come unscrewed
from the head

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