DRILL BIT COOLING APPARATUS

摘要

PURPOSE: A drill bit cooling apparatus is provided to enable stable and accurate drilling of a hole by minimizing the abrasion of a drill bit. CONSTITUTION: A drill bit cooling apparatus(100) comprises a spindle(110), a pressure foot(120), and a jetting unit(130). A drill bit(113) is coupled to the bottom of the spindle. The pressure foot having a drill bit receiving space is installed on the bottom of the spindle. The jetting unit is installed through the exterior of the pressure foot and equipped with a jetting nozzle on an end to spray cooling water to the tip of the drill bit.