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Thread: CNC drilling a long hole - GIF

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    I want to see the alignment of those holes from the bottom of the workpiece. Betcha it doesn't look like the top.

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    Quote Originally Posted by nova_robotics View Post
    I want to see the alignment of those holes from the bottom of the workpiece. Betcha it doesn't look like the top.
    It was piloted. If it was a gun drill that would be a different level of straight. Perhaps drilled initially with a gun drill and enlarged with the helical drill? The high pressure coolant helps keep them straight to.



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