1. DRILL MODEL Dont use impact/hammer driver. Please use drill driver to deburring/chamfering.
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2.FIXED WORKPIECE To make sure perfect deburring, please fix the workpiece tight.
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3.SPRAY OIL Hard steel could use lubricating oil to improve tool performance
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4.DEBURRING/CHAMFERING In a clockwise direction only. Slightly applying pressure to remove the burr.
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