常見例句A tool for making a countersink. 做螺絲釘孔的工具To drive(a screw or bolt) into a countersink. 將鑽或螺栓置入埋頭孔Orthopaedic instruments.Drills, taps and countersink cutters for use with osteosynthese screws with asymmetrical thread and spherical under-surfaces. 外科毉療器械.;矯形外科器械Keywords countersink diameter;peg;grip; 鑽孔直逕;銷釘;握著力;drill and countersink combination 尖角鈍角兩用鑽multiple-cutting edge countersink 多刃錐口鑽 返回 countersink