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DESCRIPTION: The module is a 12-foot clock with 4 points of positive digital (0.36 inches) display module driver IC TM1637, only two signal lines can make SCM four 8-segment LED. Module features are as follows:Display of male red for the four digital tube Adjustable di..

DESCRIPTION:1 mm drill bit FOR ABS board, thin board, perforated aluminum, cardboard punching.