counter sinking meaning in Chinese

钻锥坑
锪孔

Cylindrical counter sunk screws
圆柱形沉头螺钉
Tabular layout of product properties - part 81 : drills and counter sinking tools with non indexable cutting edges
产品特性表.第81部分:钻头和不带分度刃口的埋头钻
Tabular layout of article characteristics - part 86 : drills , counter sinking and reaming tools with indexable inserts
产品特性表.第86部分:钻,埋头钻和带分度镶齿的铰刀