Novel log multi -disc saw saw bit

The utility model relates to a multi -disc saw equipment especially relates to a novel log multi -disc saw saw bit, including inner disc shape blade base member and excircle annular tool bit, excircleannular tool bit's outer edge is spaced apart to be equipped with a plurality of tooth -shaped cutter mouths, the annular groove has been seted up to the side of inner disc shape blade base member, the mounting hole has been seted up at inner disc shape blade base member center, the internal portion of circular disk cutter film base uses the mounting hole to offer the heat dissipation through -hole that the plural number strip is radial evenly distributed for the bottom of well mind -set annular groove, annular groove and each the fine copper has been pour in the heat dissipation through -hole, the side of inner disc shape blade base member corresponds the welding in excircle annular tool bit. The utility model provides a saw bit thermal diffusivity of present log multi -disc saw not good, the easy yin gaowen of