Center of groove structure goes out water cutter

The utility model relates to an aviation, engineering machinery, automobile parts field are used for metal cutting's cutter, especially a center of groove structure goes out water cutter on CNC machining center. It has two central apopores, its characterized in that: be equipped with the slot respectively in the exit of two central apopores and on being located the terminal surface of tool bit, this slot is fan -shapedly, and the length of the long arc wall of this fan -shaped slot be 3mm, and these the fan -shaped slot both sides directly length of wall are 2mm, and the both sides directly contained angle of wall are 40. The utility model provides a less circular arc center apopore in general standard rod cutter both sides, and improved the flow and the velocity of flow of coolant liquid in the course of working of reality to heat and the cutting bits that produce are cut in faster taking away, and the thermal conductivity that the messenger cut the material reduces, improves the discharge nature of smear me