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Guide for electric drill - has support with catcher cup, sealing around drill to retain swarf and dust?keyword=Guide for electric drill - has support with catcher cup, sealing around drill to retain swarf and dust?keyword=Guide for electric drill - has support with catcher cup, sealing around drill to retain swarf and dust?keyword=Guide for electric drill - has support with catcher cup, sealing around drill to retain swarf and dust 专利,更快更准确