这句话里的drill和crisp是什么意思?

问题描述:

这句话里的drill和crisp是什么意思?
the handle of the drill in the sample was to crisp-please note the drill needs to be pre-washed before cutting.
这里面drill和crisp

在这句话的意思:钻头容易折断,钻之前要清洗.