Reply by Lazyman

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Posted on Sheer Cut Carbide Turning Tools -- Harrison vs. Hunter vs. Other?

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3412 posts in 1777 days

#1 posted 05-06-2019 01:11 PM

I haven t used a shear cut carbide but I dislike the round bar carbides I made, they roll too easy and cause nasty catches. I planned on remaking them in square bar, Joe even sent me one, but I ve been using gouges except for roughing.

- Woodknack

That made me look at how they are made a little more closely. Was the cutter wider than the bar? After looking at several sheer cut tools which are on round shafts and their demos, I realized that one thing that they have in common is that the cutter is narrower than the round shaft. It looks like they taper the shaft a little so where the cutter is mounted, the shaft it is about the same width or slightly narrower than the cutter. If you are cutting with the sides of the cutter outside the width of the shaft, I can see that it would tend to try to turn it in your grip. Rolling it over may reduce the tendency to catch but in my experience the flat cutters do not work as well tipped over. Perhaps getting a sheer cut cutter from AZcarbide or just mounting a narrower flat cutter and tapering the end a little to match the cutter will make it so you don’t have to make a completely new tool? Just a thought.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

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