Abstract: Fitter is a kind of operation skill with strong practicality, and drilling and truncating are the most fundamental operation, which are difficult to handle.

• 摘 要： 钳工是一门实用性比较强的操作技能，而钻削加工是钳工中最基本、最重要的操作方法之一，其特点是难度大,不易掌握。