Originally Posted by Ken_Shea Ken, you can get the 7/16-20 here
http://www1.mscdirect.com/CGI/N2DRVSH
Are you saying that the Form Tap is burred, I thought smoother threading was one of the benefits of form taps?
Is the 6061 soft or tempered like T6 for example ? I have found that softer aluminum has more burring problems then the harder tempered materials.
The other Ken  |
No, one of the reasons I'm using the forms taps is because they don't generate burrs.
Offhand, I don't know the temper. But most of the stuff I buy is T6.
The problems are where the holes intersect, where a threaded hole crosses a hole that partially intersects another hole, etc.
Thanks for the link.
Ken