[西德专利公开号3631763] 向刀具刃头部分供给的冷却剂是从外部的和朝夹具内的细孔这两方面来完成的.刀具h装在安有刀具体d的夹具上,在这个刀具体b的边缘上钻出冷却剂用的小孔,将刀具体以刀具的轴心旋转90°,刀具体未端的小孔要与所设计夹具的冷却孔保持一致,这时冷却剂经刀具d内的通孔而流向刀刃h.(如图A) [West German Patent Publication No. 3631763] The coolant supplied to the cutting edge portion of the tool is made both from the outside and toward the fine hole in the jig, and the tool h is attached to the jig with the tool body d, The edge of the tool b bored coolant holes drilled, the tool body to the tool axis of rotation 90 °, the tool end of the hole to be consistent with the design of the cooling holes to keep the fixture, then the coolant through the tool d through holes and flow to the blade h (Figure A)