释义 |
pilot hole
pilot hole - A small hole drilled or hammered for the insertion of a nail or screw, or for drilling a larger hole.See also related terms for insertion.
pilot hole
pilot hole[′pī·lət ‚hōl] (design engineering) In metal-forming operations, a prepunched hole in a metal strip into which the pilot component of the die enters in order to assure precise registration of the strip at each work station. (engineering) A small hole drilled ahead of a larger borehole. (mechanical engineering) A hole drilled in a piece of wood to serve as a guide for a nail or a screw or for drilling a larger hole. pilot holeA hole which serves as a guide for a nail or screw, or for drilling a larger-size hole. |