Grooved diamond sintering saw bit of tool bit

The utility model relates to a saw bit specificly involves a grooved diamond sintering saw bit of tool bit, including circular base member and a plurality of diamond segments s of connection on circular base member excircle, be equipped with the mounting hole in the middle of the circular base member, still be equipped with a plurality of base member chip removal sections on the circular base member excircle, is base member chip removal period number between adjacent two diamond segments, and base member chip removal section is 5 with diamond segments excircle tangent line 90 the contained angle still is equipped with chip removal section between the diamond segments who coordinates base member chip removal section between two adjacent diamond segments, the chip removal section is unanimous with the direction of base member chip removal section between diamond segments, and every diamond segments goes up to open has an at least chip groove, is the chip groove 5 with diamond segments excircle tangent line 90 t