countersunk drilling meaning in English
沉头钻
Examples
- Arbor for tip type countersink drill . dimensions
片式沉孔钻用刀杆.尺寸 - Arbor for reverse countersink drill . dimensions
反沉孔钻刀杆.尺寸 - Countersink bit ; rose countersink drill
埋头钻嘴 - Countersinking drill press
尖底扩孔钻床 - Machine countersink drill
机械埋头钻嘴