01-05-2013, 08:01 AM
I totally agree Ken, the #7 QCTP holders are a pain. Especially if you are using the cheap (alleged) "HSS" blades that usually accompany them. I did find that things greatly improved after I grooved my #7 holders to hold better quality "T" blades so that they are vertical. Still - it's usually a 50/50 chance that it will cut well without SOME sort of issue.
I have a question about the grind on the T-blade in your photo though.
![[Image: photobucket-7668-1315256060736.jpg]](http://img.photobucket.com/albums/v466/kenm10759/Dads%20shop/photobucket-7668-1315256060736.jpg)
It looks like the front of the blade was ground convex following the curvature of the grinding wheel. Does this not weaken the tip of the blade on a parting tool? Every one I have ever seen has a straight cut relief on the front edge of the blade. How does that work?
I have a question about the grind on the T-blade in your photo though.
It looks like the front of the blade was ground convex following the curvature of the grinding wheel. Does this not weaken the tip of the blade on a parting tool? Every one I have ever seen has a straight cut relief on the front edge of the blade. How does that work?
Willie