countersink，英语单词，主要用作动词、名词，作动词时译为“打埋头孔与……；把（螺丝钉等）钻入埋头孔”，作名词时译为“用于锪削的工具”。
单词用法
柯林斯英汉双解大词典
countersink /ˈkaʊntəˌsɪŋk/
1.V to enlarge the upper part of (a hole) in timber, metal, etc, so that the head of a bolt or screw can be sunk below the surface 把(木材、金属上的孔)扩大
2.N a tool for countersinking 用于锪削的工具 (Also called countersink bit)
短语搭配
CSK Countersink 埋头孔 ; 埋头 ; 埋头的
taper countersink 锥面锪钻
rose countersink 菊花钻
machine countersink 机用锥形锪钻
Countersink Bits 锪钻
splint countersink 钝角菊花形尖头板钻
countersink learn 埋头钻
live countersink 钝角菊花形尖头板钻
countersink drill[机] 埋头钻 ; 埋头坫 ; 静心钻 ; 中心钻