Perpendicularity, the correctness of the measurement at any point, is important for tapping arm applications. In this case tools like drilling or tapping need to be perpendicular with working parts. Installing this magnetic positioned holder on the spindle, the strong magnet smooth head will stick on the metal working pieces to check or adjust perpendicularity easily. Simple Device Solves Complex Positioning Problems makes your thread accurately. It is also very useful in protecting machine spindle, taps and drill bit.
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