The utility model provides a drift size gauge tool which comprises an upper connector, a lead mold connected with the upper connector, a barrel arranged outside the lead mold in a sleeved mode, and a pin used for fixing the relative position between the upper connector and the barrel. The drift size gauge tool can be used for achieving dredging and printing in one-time work, can well protect a printing mark, and achieves the effect of saving time and labor and being accurate and reliable.