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    QCTP boring bar holder modification

    That's a very good point. With adjustable height lathe tool posts, you control the important relationships so you can address these limitations.. But on a boring head you have no "height" adjustment, only axial rotation which ties together other references that are pretty much set at...
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    QCTP boring bar holder modification

    Regarding the use of the little import boring bars. They can be made to work, but in my experience never ideal. The better quality ones are, of course, better. But even the cheap one can give decent service with light cuts. But the green wheels are not going to get you there. At best, they...
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    QCTP boring bar holder modification

    Good job. I've made quite a few of those bushings, and they work very well. But a few suggestions. First, turn it so that the slot is aligned with the clamping bolt wedges. You want the wedges to bear on opposite sides of the slot to close the slot down on the boring bar. And, on thicker...
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